Hey all, I'm looking to expand my stable of long-form, "crunchy" reading material. I'll recommend three. ( I think I found all these through tildes.)

Casey Handmer's Blog
A blog about the new space industry with a specific focus on SpaceX and the industrialization of Mars.

Construction Physics
A newsletter that analyses trends and data in the construction industry with a focus on modular construction.

ACOUP
Essays about medieval and ancient history as well as their interaction with popular culture, with a focus on methods of production and common people in history.

Another type of content I've really enjoyed is detailed breakdowns of zero-day vulnerabilities and large software catastrophies.

Occasionally people here get into discussions about social relationships, namely dating, and what quickly comes up is how both of those seem to be less common and harder to 'get'. This more frequently happens in overtly dating and relationship subreddits and similar dedicated spaces, albeit, of course, this also pops up in more general communities, alongside any community where social relationships are an important topic, like communities about social ideologies like feminism or the manosphere or about genders because heterosexuality.

One thing I often find is missing is some historical context. A lot of talk about loneliness and lack of platonic or romantic relationships is basically limited to the recent past, if it even talks about the past at all. It seems like it would be helpful to look at what relationships and dating were like 10, 20, 30 years ago when it comes to talking about the problems or just general state of both today. So do you know of good sources of information concerning relationships in the past? If so, then why do you think they don't pop up in discussions about dating?

I'm really not sure if I posted this in the right place, but I have been watching the Youtube channel "The B1M" and the guy's other channel "Tomorrow's Build" and I really like his type of content. I've also been watching tv shows about homes and the types of people who live in what homes in which parts of the country (Denmark). I also watched a couple of episodes of "The World's Most Extraordinary Homes" on Netflix...

So yeah, I obviously really have an itching for more content along the lines of buildings and especially homes. So, does anyone have suggestion on what to watch next?

Hey all, recently bought a Synology NAS and looking for suggestions for things to do with it.

I'm not exactly tech saavy when it comes to something like this, so guides accompanying suggestions would be super helpful.

Since I was a kid my main reason for avoiding meat has been the spongy, chewy texture that makes me nauseous in just a couple of bites. I've been trying to find good substitutes, but despite vegan stuff becoming more popular, food companies are all trying to make the taste and mouthfeel imitate meat. Nice for a meat lover turning vegan, not so much for someone who never liked meat to begin with.

I've tried tofu and soya chunks, but they both had the aforementioned problem. Coarse soybean meal is the only very high protein (>50%) thing I can handle, as when cooked it closely resembles one of the few meat products I used to eat without a problem: ground beef/meat.

Are there any foods that are of softer consistency? Something similar to beans, cheese, or fish, perhaps.

I should mention that I live in Europe, so any US specific brands/chains may or may not be available here.

Speculative fiction contains elements that don't exist in reality. It includes genres such as science fiction, fantasy, and supernatural horror.

A producer friend is looking for stories with a focus on LGBT issues. As someone with a predilection for speculative fiction, it would be great to read/watch some speculative stories that deal with issues in that area. I am aware of some stories with LGBT characters, but gender and LGBT issues are generally not the main themes. I'd love to get suggestions for movies, TV shows, and books (especially short stories) that deal with those issues in a proper and inventive way.

As usual, Wikipedia has an extensive list on the subject, but I was hoping to get some more personal suggestions from the Tildes crowd.

Thanks!

The last time I posted on tildes, I got some really helpful suggestions on a mop for my floors. Now I'm looking for a new high chair for my daughter. She's nearly 6 months old, so we're about to start her on solid foods but gave away our older son's high chair a while back when he started sitting in a regular chair (and because it was terrible).

The main requirement is that it's easy to clean, but it also has to support a younger baby sitting in one for the first time. Our last high chair (Graco brand) almost seemed like it was designed to have as many difficult-to-reach crevices as possible where crumbs could get pulverized into.

What do you think?

I'm rather bored of the constant pop up ads on my current one that I paid for ads to be removed for years ago before more recently they changed to a subscription requirement for advert removal.

I'm looking for something easy to use that has no ads by default or has a one time payment to remove them. Extra features such as tags/folders would be great but not 100% required. Any suggestions will be greatly appreciated.

It seems incredibly common in works of science fiction that touch upon technological immortality to focus on every possible way that such a technology could go wrong, create problems, or worsen social dynamics.

Among the negative outcomes that have attained trope levels of frequency, off the top of my head, I can name the following:

1. Immortality becomes available only to the ultra-wealthy, allowing them even more power to abuse everyone else, leading immortal people to be antagonists in a pretty generic dystopian plot.

2. Immortality subtly twists the morality of its beneficiaries, causing them to lose sight of "the real meaning of life" according to the author's worldview, and the protagonist usually fights for society to recognize how important death and endings are

3. Immortality causes people to go insane, become monsters, or otherwise utterly lose their humanity (this is more of an extreme version of case #2, but I feel it's distinct in the way a story plays out)

4. Immortality ultimately leads to the extinction of the human species due either to biological effects of the immortality technology in question, or due to cultural/societal shifts that lead people to stop reproducing

I'm sure there are many others that I'd recall if prompted, but my point is that I don't think I can name any science fiction that involves immortality technology that doesn't also decry it as ultimately a harmful development.

Are there any works of science fiction that any of you can think of that do more to celebrate the idea or look forward to it with some optimism?

Weird question, but does anyone know of a simple tab viewer or organizer for Firefox (bonus points if it works on iOS)? I have... way too many tabs open, and I want to see what I can bookmark before closing rather than having to either close everything or manually check each tab.

I've suffered from depression and anxiety disorders for a while now. I take medication daily and I am seeing a therapist. However, I feel that I should know more about the disease. I think it would be useful for when I'm talking to my therapist and psychiatrist for example.

Recently I had a healthy debate with my therapist because she believes I am too young to be dependent on meds and that I should aim to get out of them long-term. I explained her that before I started taking drug mix that (kinda) works for me, I was falling into an abyss. I couldn't function, I couldn't be independent. And, with my current knowledge and experience, I think I will be a chronic user of medication.

So I got the impression (I might be wrong on this and we will discuss it more in the future) that my therapist believes in some kind of separation of the brain from the biological world. For example, if someone is diagnosed with a heart disease and starts taking meds, no one bats an eye. When it comes to psychiatric drugs people get concerned. I am skeptical of this double standard.

I also believe that the current umbrella of depression will be revised in the future. I think for some people it is caused by a life event but for others, the brain just isn't working well and we can't (yet) identify a source for the depression. My therapist doesn't like this theory. She thinks that it all comes down to your emotional and behavioral landscape, both in the present and in the past. Now, I know that the brain is a "special" organ because, unlike the heart, we use it to think and feel. So there is definitely SOME relationship between depression and what you feel and act, but I think that is a simplistic way of seeing things. I have done brain exams before and nothing was found. But did someone test my brain chemistry for example? No. So There is probably much more to learn with regards to the disease.

So I guess this was a long way of reaching my request: I am looking for up to date and thorough literature on depression, mostly on it's causes, treatments and current undergoing research. I want to be more informed so that I can better communicate with my caregivers. I want to know what the hell is wrong (at least, most likely) with me. I want to know that there is hope in current research.
This literature can be books, papers or another medium.

I would like to finish by saying that I like my therapist a lot and the objective of this post is not to bash her. It's about explaining the context for my request.

Thanks.

I once heard about a website that does this, but I cannot find it. You would give the website an RSS feed, and it would give you a new feed to subscribe to. It would then release “new” episodes on a set schedule. This way you could listen to, for example, a weekly podcast starting at the very beginning, released on a weekly schedule as if you were listening to it when it first released.

I hope one of you awesome tilderinos know a website that does this. Thanks in advance!

I'd love to get a passable alternative interface to YouTube that just shows me what I'm subscribed to, a search bar, and nothing else. Does this exist as a userscript or alternate site?

Edit:

My current solution is to have my YouTube bookmark go directly to my subscriptions listing. I also have my ad blocker cut out the recommendations feed on the side. It works okay but maybe there's a better solution out there.

This is the ad block rule:

www.youtube.com##.ytd-watch-next-secondary-results-renderer
www.youtube.com##.ytd-guide-entry-renderer[title=Explore]
www.youtube.com##.ytd-guide-entry-renderer[title=Home]

Last time I owned an inkjet was well over a decade ago. I had a nice HP color laserjet that Just Worked™for almost a decade (and PS, I bought it used), and then I just lived w/o a printer for the past 3-4 years. Now, I'm window-shopping for inkjets, it sounds like the whole "use-our-ink-or-die" business model has only gotten worse.

Are there any good inkjet printers where I can just use it like a normal printer, just buy ink (cheaper than the printer was) when I need it, yada? Or should I just write off the entire industry (again), and go straight to the laser printers?

And does anyone actually have a decent (color, all-in-one) printer that works reasonably well with their (YourDistroHere) Linux machine?

Danke

ETA: Thanks for all the feedback. I'm now prioritizing a Brother laser (maybe just mono), or possibly an Epson Ecotank.

Side-note ... how cool is it that we have so many Linux-folk in our midst!?

Thanks again.

I'm setting up a server with nextcloud, plex, matrix and some other things I don't yet know, for some friends and family, (about 20 people if I get lucky)
and now I heard of a thing called single sign on/unified login. (Login to different services with the same user/pw and/or login once, access to all services)

so far I found out about Keycloak https://en.wikipedia.org/wiki/Keycloak

is this what I'm looking for? does anybody have experience in this? Are there other/better/simpler solutions for this?

When I was a kid I loved the stories of ancient Greek mythology and I think my daughter would enjoy them too. What are some good collections for a 7-year-old? Her name is Ariadne, so I’d be especially interested in ones that feature that character as more than a footnote (though preferably the less traumatizing versions of those particular stories).

What are some of the best, most influential, memorable, or otherwise impactful short stories that you've read throughout your life? If possible, please link to a PDF or other text so that we can enjoy it too.

Hi Everyone!

I'm looking to donate some money to a charity that is focused on helping children learn how to code.
I've always heard that lots of charities are scams, and I was hoping to get the opinions of you fine folks about a good charity to donate to!

Just wanted to preface this by saying that I don't know much about self-help lit and do not mean to offend anyone who enjoys it as a genre.

I've been talking to a friend of mine who primarily reads self-help literature (a genre I've never really delved into), and what struck me was the highly materialistic/individualistic focus that a number of these books seem to have (most being focused on becoming an entrepreneur who drives a Lamborghini and retires by 40 living off of their crypto/stocks/real estate investments). The failure of the individual to achieve these goals can apparently be overcome through positive thinking, changing one's mindset, etc, and the focus seems to be largely on material goods and the general definition of "American-style" success. My general feeling is that a large part of self-help as a genre is focused on the failings of the individual rather than societal ills (or, the Jordan Peterson style of motivational thinking), and that got me wondering if anybody had some books that differ from the mold somewhat, possibly talking about improving yourself not only as an individual but also as part of the community, perhaps offering some sort of a leftist perspective that touches upon commodity fetishism, etc.

If anyone had any suggestions, I'd love to take a look at them.

Hi all, can anybody recommend any games that are mostly investigation-based with little to no combat? A few that I've really enjoyed were Outer Wilds, Return of the Obra Dinn, and The Sexy Brutale. (Two of these have time loop mechanics, and even Obra Dinn has something very similar, but I guess that's not strictly a requirement.) Each one is very story-driven, with complex worlds and events meticulously crafted, and it's your job to figure out exactly how each one works.

My fiance is an artist who was laid off because he worked for a major employer in the entertainment industry that required him to be in contact with people.

So he's been unemployed for a long time now, but he has been trying to find work, but there isn't really anything available that uses his particular skills. So we invested in a digital art workstation (basically just bought a monitor with a digitizer built in to use a pen with) so that he could work on becoming an independant artist. But he's so bad at marketing and he spends so much time worrying about fine details that it takes him over a week to finish a single piece, so he hasn't had any success.

So if you combine this with a broken tooth that he hasn't been able to get taken care of because of a lapse in his dental insurance, he's not been in a good place.

I just bought a Mac and was looking for mac-native graphics programs (I sometimes work on marketing, so I need to do photo editing from time to time. Also I used to do photography as a hobby and want to get back into it), when I came across Serif's Affinity Designer Workbook. And I thought to myself that getting my fiance a training course in graphic design would allow him to shift gears into a segment where there is more work. It'll also give him a bit of a kick in the pants to get him moving and feeling better about himself.

I'm sure everyone knows there are millions of online training courses available right now, so I'm hoping someone might have any recommendations. I have some money saved up, so I don't mind paying a little bit extra if it'll result in better results. I'd prefer if it were a class that didn't rely on Adobe Illustrator if possible, but I know that it's the 'standard' and he'll probably have better luck if he has experience in it.

I really really enjoyed 'Danshi Koukousei no nichijou'. In particular anything-goes hijinx parts, and nice lore.

I also enjoyed metahumor from Saekano and Monogatari, but they lean in their respective category more than comedy part.

Monogatari is a bit heavy and needs attention, so I'm looking for something light and humorous. I don't much enjoy fan service/lewdness unless it serves the purpose of the story or as comic relief.

Any suggestions welcome!

I'm on a binge of watching YouTube videos about Asian culture and wanna take it to the next level. Anything about the cultures of countries like Japan, both Koreas, China, etc. As long as it's high quality and available on the major streaming websites. Thanks!

I need to read some fiction children books about death (for research) -- any age group preferably for young children.

Stories both realistic and fantasy/fantastical that doesn't gloss over the suffering and pain children can experience, possibly with dark overtones.

Stories featuring Death as a character would be great too.

Thanks!

I recently went into my attic and pulled out my old 1990s 4-track Fostex X-26 tape recorder. I was hoping to transfer some of my old band tapes to the computer. Alas, it is dead. While it turns on, the motor appears frozen, and the device hums. (I don't mean there's line noise when you plug a speaker into it, I mean the device itself audibly hums, even when not using the tape controls.)

I have seen online that some people repair theirs. It's probably beyond my skill level to do so, though. (And I don't really want to do it myself.) I have contacted a few shops near me (Los Angeles), but have gotten no replies, unfortunately. I was wondering if anyone here knows of a good shop that would repair an older device like this.

I have also contacted some places that claim to do cassette to digital transfers, but none have replied to my questions about whether they can deal with a 4-track recording. Also, just looking at their prices, it seems like it would cost significantly more to have them convert my tapes than to get the recorder repaired. (And I'm not sure what's on all of the tapes, so I don't really want to hand over some embarrassing practice tape or tape containing some out-of-context banter between takes on it.)

I've looked online for a used one, but all the listings I've found have been "for parts only", which is what mine would be if I were to sell it. And knowing how these things go, they probably all have the same broken part. So any recommendations are appreciated!

I've been looking lately for something new to read/watch/listen to/play and I've been chasing a particular feeling that some of my favorite works have given me in the past.

It's something that's hard to describe succinctly, so it's not exactly easy to just google search for something, and usually just telling people I like x thing gets me y recommendation which is maybe a similar style or genre but doesn't really elicit the particular feeling that I'm after.

I figure other folks might have a similar problem, so I thought it might be fun to have a thread for requests for works that make you feel a certain way, regardless of genre or medium.

I'll start mine in the comments and other folks feel free to ask for requests as top-level comments as well!

Back when I was a kid, I had a radioshack 200-in-1 science fair electronics kit this one

I loved that thing, and it sparked an interest in tech that ultimately led me to a CS degree.

Id like to buy something similar for my much younger sister, but nowdays everything I can find is arduino or raspi based. Id love to get something like that eventually, but I think it might be better to get a kit that more focuses on individual components first... Does anyone know of one sold these days?

Alternatively, if anyone has one of these and would be willing to scan the book, Id love to build one of these as a breadboard-based system.

Might be a weird one, but I like the uh..... aesthetic? I guess?

Some examples would be:

Is there a show focused on current affairs that you would feel like recommending? I'm looking for reportages, in-depth interviews, and high-quality commentary, maybe not overly US-focused, the more international the better. The only one I know is VICE News, which leaves a bit to be desired sometimes. Grateful for any recommendation!

The recent rise in hate crimes against Asian Americans has been an emotional topic for me. The thing that makes me sad is, it seems the most I can do to de-escalate a violent situation I see on the news without putting myself in clear danger is to basically distract the aggressor from afar and comfort the victim afterwards.

What makes the matter more complicated is, if you look at the demographics of those who tend to commit these violent crimes against Asian people, they're often other minorities. It's so easy to fall into a trap of undermining the progress we've made in racial/social equality the moment we acknowledge that Asians are being targeted. For similar reasons, I view that our political system is entirely ill-equipped to handle this matter in a sustainable matter.

But I'd still like to turn this into something positive. Because I live comfortably as an engineer in the Bay Area, I was thinking I can donate to charities and organizations that are effective at bringing an end to this violence every time I see news about an Asian American getting targeted on social media. I plan on doing my own research as well, but I hope you can also give some suggestions.

My 2 main dealbreakers are significant amounts of paid content or the service itself being paid (because I'm not of working age) and that it doesn't work in mobile. So any reccomendations or anything more you might want to say?

Maybe that atmospheric death metal band you like recorded an acoustic folk cover of a Rihanna song. Maybe that bubblegum pop artist you follow made an experimental post-rock album.

The goal is to highlight range: try to find two songs that are as "far away" from one another as possible while still being from the same artist.

Link the songs here, and identify what makes them so different.

I've been thinking a bit lately of starting to look for another place of work. Nothing is really bad at my current employer, but I've been there since 2017 and my feet are starting to itch a bit. In addition, I'm not really to engaged in my work at the moment since I feel the domain is fairly boring and the tech is rather mundane. This might be a reflection of my sentiment of IT industry in general, i.e. lots of toys but mainly they are just different flavours of the same thing (especially when it comes to building XYZ web app).

Formerly my approach to finding a new job has been to look for companies that are looking for people with skills in technologies I am interested in learning. However, since I'm a bit dissilousioned with tech I think I need to switch my approach and look more for a mission driven organisation I can get behind!

What are your thoughts on organsations that do some kind of important work? If you were to pick a top 3 organisations where you would work which ones would you pick?

Note they don't have to be tech focused. I'm generally curious about different organisations I should look into and also to hear your thoughts on the matter!

I’ve missed a lot of the older mmos growing up like Everquest and dark age of Camelot. What are some good older mmos to play that can still be enjoyed either as a single player or coop experience with friends that still have online and supported servers? Doesn’t have to have a massive player base or anything, it can even have just a few thousand players. I would also like to avoid WoW, I’ve had a fair amount of time in it and don’t have any desire to go back.

My husband and I recently started listening to Tones and I who has a song called Johnny Run Away. It’s a short story about a boy who has feelings for another boy and is told by his dad to “run away” not because the father is homophobic but because he’s trying to protect his son from getting bullied:

His daddy walked by with a sigh
Said, "Johnny, sit by my side
I'm gonna give you the best advice
You've ever heard in your life
See that boy named Jimmy, yeah, he's a cutie
But no, no, Johnny, no, no, no
Johnny run away”

I like the song partially for its musicality (so catchy!) but also its narrative is genuinely touching to me. My father-in-law once told me he knew his son (my husband) was gay early on. He said that never changed how much he loved his son, but he was always worried about how much harder life would be for him because of that. I think a lot of parents support their LGBT kids but also live with the very real fear of knowing that the rest of the world won’t necessarily do the same, and I think this song captures that perspective.

Anyway, I would love to hear about other songs that feature LGBT stories and perspectives, especially if they’re personally resonant for you or someone you know.

I’ve started exercising to TV and need some shows with episodes of 30 minutes (or less) because anything longer is not in the cards for me yet.

I’m open to any suggestions, but would prefer more recent shows and less well-known ones. It’s easy to find recommendations for stuff like The Office and a lot harder to surface those hidden gems that are out there.

Any streaming service is fine. My husband and I don’t really stay subscribed to any and just toggle individual ones on and off as needed.

Today I was lucky enough to get the Thrustmaster T.16000M FCS Flight Pack that includes a joystick, throttle, and rudders. I also have a Valve Index set up to use for VR flight games. My main use for this setup is to use alongside Flight Simulators to practice maneuvers and other things flight-related while I am taking IRL classes to get my pilot's license. But I want to broaden my scope a bit and try out other games that would suit it (VR or non-VR).

Any thoughts on what to try and play? I have Star Wars Squadrons that I plan to boot up already.

I got a cheap mop at the grocery store last year thinking that would be enough, but it broke like a month ago and always left smudges all over my floors anyway. I never really liked it. It was one of those fixed sponges with a handle to squeeze it out rather than one that looks like Medusa.

I have wood laminate floors throughout my house, not true wood floors. Unfortunately, they're dark brown and show a ton of crumbs and smudges, so I'm looking for something sorta in the buy-it-for-life category. I.e. willing to shell out a little more if it makes a difference. I've had a vacuum for a year that has been good for all the crumbs (Miele), and I really love it.

Also what soap should I be using for best results?

Thanks, all!

My girlfriend and I have had a habit of going straight to watching movies and tv-series when we hang out, because due to lockdown almost everything is closed, so we don't really have a lot of activities to choose from.

We also play games occassionally, recently scrabble on our phones. But what other boardgames work well when there are only 2 players?

Edit: Wow! I can't possibly respond to everyone but I didn't expect so many people to comment with help. Thank you so much!

When learning something new, often available resources are lacking in some departments - whether they're missing information, poorly written, or tedious and dry. But occasionally, some content just stands out as above and beyond the rest, serving to not only make the learning process enjoyable but also to kindle interest in further exploration. What is that for you?

This could encompass everything from computer programming to literary criticism, and could be in the form of a website, book, video tutorial, or the like.

I'm looking for a new office chair to replace my old Ikea one, and I'm curious what people recommend. I'm looking at the Autonomous ErgoChair 2, but I'm not completely sold on it. I've heard amazing things about Steelcase and Herman Miller, but I can't justify paying $1k on a chair.

What do you have and would you recommend it?

Edit: I went to a used office supply store and got the Steelcase Gesture. Thanks for all the input!

Hi,

Where I am living we are going back into a month long lockdown, I would like to find some vegetarian recipes to cook.

I am not a Chef but I cook everyday so more advanced recipes are fine, though I also like quick wins when I don't feel like spending much time cooking.

What do you people eat when you don't want to eat meat? What are your favorite recipes?

Thanks!

Hi everyone, I'm looking into getting a new laptop for university work. Thanks to a scholarship, I can get up to $2000 covered off a laptop purchase (and I'd be willing to pay a few hundred more out-of-pocket too).

I plan on using this laptop primarily for basic web browsing, word processing, and Zoom calls. I may be playing some video games on it like Slay the Spire or Hollow Knight, but these aren't too demanding and most of my time will be spent working anyway. My use case shouldn't require a lot of processing power or a high-end dedicated GPU. After graduating, I'll have more consistent access to my desktop anyway, which already has a dedicated card for gaming and can easily be upgraded to suit my needs if I get into video editing or programming, which further reduces the need for a laptop that can do these things. In light of this, I'm looking primarily at a laptop that is lightweight, has a long battery life, good build quality, and a 14-inch screen, to upgrade from my current 13-inch. I haven't decided whether I'll be dual-booting Windows/Linux or running Linux only, but I do plan on running Linux so compatibility is important. Ports aren't a huge deal since there isn't much need for anything more than HDMI/USB on a college campus and I can get a docking station for post-graduation needs.

After lurking around on this forum and others, I've settled on a few potential options:

• Thinkpad X1 Carbon
• Thinkpad T14s
• System76 Lemur Pro
• MacBook M1 Air (added after suggestions, link to specs)

ThinkPads seem to offer the best build quality and potential to last years after purchase, so I'm leaning towards those, but System76 appears to have upgraded their build quality recently, and I just love their designs as well. Lenovo will be releasing the next-generation X1 Carbon soon, but it may be priced out of my range, and I'd like to purchase soon. Even the Carbon Gen 8 is above my price range, though as I understand it Lenovo usually offers discounts so I'm waiting for the sale on customizable builds (they already have discounts on pre-designed builds). I'm totally open to suggestions not on this list, and I've also read that purchasing refurbished ThinkPads can be the way to go, though I'd like to take full advantage of my budget if possible. If anyone has any experience with the above laptops, reason to recommend one over the other, or knows why I might want to wait on purchasing (e.g. for a release of next-gen hardware), please let me know!

edit: Table working now!

edit2: Thanks for all the suggestions and discussion everyone. I've yet to make a final decision but will update again later.

I am looking to buy a headset. It's for my child to use on PS4, and when stock comes back in on PS5.

Which models have you used and liked? Are there any you'd avoid?

I think I'd prefer either USB, or something easy to repair, or cheap so I can just buy a new set of this one breaks.

I'm vaguely in the "market" for a new computer algebra system (Mathematica, Maple, Sage, SymPy, etc etc) and I am curious what experience you all might have with these types of programs. In the past I've used Mathematica, and once you get over the odd aspects of the Language (and hefty license fee), it is a pretty great piece of software. Nonetheless, now that my old student license has expired and I would have to buy a new one (though through my school I can get it at a steep discount) I'm looking at some alternatives. Sage seems particularly appealing since it is open source and apparently well documented, and of course SymPy is powerful although that as stand-alone as these other choices.

There are tons of other options as well, with a wide range of functionality (it really is amazing how much these things can do). My main use cases with these types of things are either: a) algebraic manipulation, b) linear algebra, c) visualization. For these three it does really seem that Mathematica is at the forefront, but I'm all ears for other opinions.

I'm curious, if you have used any or all of these in the past, what were you using them for and what is your opinion?