Raspcoffee's recent activity
-
Comment on James Webb Space Telescope finds stunning evidence for alternate theory of gravity in ~space
-
Comment on James Webb Space Telescope finds stunning evidence for alternate theory of gravity in ~space
Raspcoffee LinkI think it's an interesting contradiction, though I would be really sceptical to put this as a win for MOND. I think it's worth noting that DM explains more than just rotational curves. @heraplem...I think it's an interesting contradiction, though I would be really sceptical to put this as a win for MOND.
Now, researchers from Case Western Reserve University say that scans of ancient galaxies gathered by the JWST seem to contradict the commonly accepted predictions of the most widely accepted Cold Dark Matter theory, Lambda-CDM. Instead, the readings seem to support a basis for MOND, which would force astronomers and cosmologists to reconsider this alternative and long-controversial theory of gravity.
I think it's worth noting that DM explains more than just rotational curves. @heraplem already pointed out the bullet cluster in this thread which is not easy for any modified models of gravity to handle. The current ΛCDM model explains a lot more than just rotational curves of galaxies. The issues that are arisen might be explained with say, multiple forms of DM particles as well. Which would be a hell to measure as we do love our Ockam's razors and solving two (or more...) unknowns would be a hell.
Of course, some modification to GR + one DM particle might also do the trick but well, same hell. Two unknowns, in things that are crazy difficult to measure. In either case though, it's unlikely that a single measurement will knock down DM theories entirely. Especially when they're measurements from a very early part of the Universe.
In any case... looking at the paper, page 14:
MOND has a lengthy track record of predictive success (M. Milgrom 2014), many aspects of which
are not satisfactorily explained by dark matter (S. McGa-ugh 2020). The early formation of massive galaxies is another
predictive successThe thing with MOND is that, to be frank, it's literally modified to fit certain curves. That's not to say that there aren't alternatives that do provide an explanation as to why gravity might work different than GR expects, such as Entropic Gravity, but that isn't quite a satisfactory argument if you ask me. In a sense, the ΛCDM model already isn't a proper scientific theory - it slaps dark matter and dark energy in it, without a more proper understanding of the workings. But it 'only' requires two ingredients extra. MOND rather adds an entire curve on it.
And General Relativity has been tested mighty well. In fact, a quick search gives an accuracy of 1 to 10^15 on accuracy. I actually thought it was even more accurate. That's not to say that General Relativity isn't the final word on gravity, or that MOND might not apply under certain circumstances, but you've got a whole lot more hurdles to overcome than just one contradiction. The era of the Universe these measurements are from is all new data. For all we know some calibrations in distance (which is both space and time in the context of cosmology) are slightly different which can alter the results.
Distance in Cosmology is hell: https://en.wikipedia.org/wiki/Cosmic_distance_ladder
All in all, interesting result. And I do think that MOND is something to keep in mind if its consistent with other measurements at some point. But there are many other ways this result could make sense without MOND.
-
Comment on After a unanimous local vote in 1996, the Swedish town of Växjö became the first in the world to commit to becoming fossil fuel free in ~design
Raspcoffee LinkThis is the kind of success stories I keep in mind when there is so much in this world to be worried about, as well as the direction we're in. Thank you for sharing, I needed this. Interesting......This is the kind of success stories I keep in mind when there is so much in this world to be worried about, as well as the direction we're in. Thank you for sharing, I needed this.
Here, local buses and council vehicles run on biofuel made from domestic household organic waste. More than 90% of the city's energy, meanwhile, is sourced from forestry by-products and other biomass, with plentiful material coming from the vast surrounding forests. This ranges from sawdust from local timber mills to branches left from tree-felling to make goods for IKEA – the global design giant born just a half hour train ride away in the town of Älmhult.
Interesting... biomass power plants have a bit of a bad reputation in the Netherlands due to them not being as friendly as advertised, but here I suppose they've rather used is as a part of the supply chain rather than adding on top of it. Using waste in this way is very efficient. Whereas here raw wood chips were imported which has a few added downsides to it: it can hurt biodiversity where the timber is harvested, the burning can cause pollution issues in the surroundings, the transport of the wood chips also emits CO2 etc.
-
Comment on Follow up on the username thread: What Tildes users do you recognize when browsing and, without being rude or inflammatory, what is your impression of them? in ~tildes
Raspcoffee LinkThere are quite a few I could mention. Though recently I've been crossing paths with @chocobean a lot. Pretty great impression really, in both casual and serious discussions always seems to bring...There are quite a few I could mention. Though recently I've been crossing paths with @chocobean a lot. Pretty great impression really, in both casual and serious discussions always seems to bring a certain shine on things. Thanks for being here choc!
-
Comment on Why is Google Gemini saying we should die? in ~tech
Raspcoffee Link ParentInteresting... It does have that vibe of someone who feels like they have to say something. Like it's unsuccessful in pulling something out that fits well, so it's pushing something out that it...Interesting... It does have that vibe of someone who feels like they have to say something. Like it's unsuccessful in pulling something out that fits well, so it's pushing something out that it can only consider to maybe dit the prompt that was delivered.
Like it just lost the context so it just grabs the nearest token with a high enough of probability and forces it through?
Then again, is it possible that it's really purely random that it could trip over like this? Or does that not really happen in the latest LLM models? (I know how they work in general but don't know the working differences in the latest models)
-
Comment on Why is Google Gemini saying we should die? in ~tech
Raspcoffee Link ParentYeah in this case it would be some sort of additional factor, a bit like 'winrate' in AIs that play games like Go, but to handle errors. LLMs work pretty different though, so a random statistical...Yeah in this case it would be some sort of additional factor, a bit like 'winrate' in AIs that play games like Go, but to handle errors. LLMs work pretty different though, so a random statistical fluctuation causing this seems the most likely to me.
The wording of the LLM is pretty... Interesting though. One of the last things you'd expect it to spit out by chance. Then again, with millions of users this kind of stuff happens then.
-
Comment on Where does your username come from? (Following up on last year's thread) in ~tildes
Raspcoffee Link Parent✨ Thank you! Oh that sounds really good. I think the white chocolate would be a very nice contrast to the darker coffee taste, and with actual raspberries it would have a really nice freshness...I really like raspcoffee though! Raspberries are super delicious, and I love your thought of making coffee cake with raspberries.
✨ Thank you!
I'm thinking, a light coffee sponge, freeze dried --> powered raspberry cream with large fresh fruit chunks inside, white chocolate shavings.
Oh that sounds really good. I think the white chocolate would be a very nice contrast to the darker coffee taste, and with actual raspberries it would have a really nice freshness too.
Damn I gotta make this.
-
Comment on Why is Google Gemini saying we should die? in ~tech
Raspcoffee LinkWell, I guess this was supposed to be an error message or something that gets triggered when it couldn't quite get an answer? Either that or some very niche link was made during the learning...Well, I guess this was supposed to be an error message or something that gets triggered when it couldn't quite get an answer? Either that or some very niche link was made during the learning process. Dunno which is more likely, bloody hilarious though.
-
Comment on Where does your username come from? (Following up on last year's thread) in ~tildes
Raspcoffee Link ParentI'm jealous of that kid, as I like your username and I wish I had that namingsense when I was a kid. 🥲I'm jealous of that kid, as I like your username and I wish I had that namingsense when I was a kid. 🥲
-
Comment on Where does your username come from? (Following up on last year's thread) in ~tildes
Raspcoffee Link ParentOh man. My old MSN usernames then? The cringe it would induce... Not being embarrassed enough to stay online versus my permanent online residence. I dunno which would win that one.It would be hilarious if everyone had to use their usernames from when they were kids.
Oh man. My old MSN usernames then? The cringe it would induce... Not being embarrassed enough to stay online versus my permanent online residence. I dunno which would win that one.
-
Comment on Where does your username come from? (Following up on last year's thread) in ~tildes
Raspcoffee LinkIt's pretty simple in my case. I like raspberries. I also like coffee. So I fused the two. Mmm... Maybe I should make a cake that uses both. Could work, actually. Bit like the raspberry and dark...It's pretty simple in my case. I like raspberries. I also like coffee. So I fused the two.
Mmm... Maybe I should make a cake that uses both. Could work, actually. Bit like the raspberry and dark chocolate combination.
-
Comment on OpenAI, Google and Anthropic are struggling to build more advanced AI in ~tech
Raspcoffee Link ParentI wouldn't be surprised myself. A lot of hype around LLMs is with the idea that they are intelligent and make decisions that require intelligence. And with that I don't mean making associations...I wouldn't be surprised myself. A lot of hype around LLMs is with the idea that they are intelligent and make decisions that require intelligence.
And with that I don't mean making associations and guess working on that(which I would personally argue is more or less what LLMs do), but actually making predictions based on a certain understanding of what the world is like.
And making something like that is going to take a whole lot more understanding. Given how memory might be more intertwined with the rest of the body than we previously thought, there's a good chance that copying or reproducing that part of 'intelligence'(yes I know I am vague here, unfortunately unavoidable with discussions around this topic) is more difficult than we thought.
I could be wrong of course. But I imagine that a lot of the infrastructure currently built for LLMs will be used for something else by the end of this decade.
-
Comment on Satire publication The Onion buys Alex Jones' Infowars at auction with help from Sandy Hook families in ~society
Raspcoffee LinkHere’s Why I Decided To Buy ‘InfoWars’, by the Onion CEO. Some quality quotes: ..Here’s Why I Decided To Buy ‘InfoWars’, by the Onion CEO. Some quality quotes:
They are a true unicorn, capable of simultaneously inspiring public support for billionaires and stoking outrage at an inept federal state that can assassinate JFK but can’t even put a man on the Moon.
..
As for the vitamins and supplements, we are halting their sale immediately. Utilitarian logic dictates that if we can extend even one CEO’s life by 10 minutes, diluting these miracle elixirs for public consumption is an unethical waste.
-
Comment on What games have you been playing, and what's your opinion on them? in ~games
Raspcoffee LinkI have been playing Metaphor ReFantazio recently. At first I was a bit skeptical tbh. It seemed like Atlus was going to make something more cliche and... It kinda is but in a good way? It's like...I have been playing Metaphor ReFantazio recently. At first I was a bit skeptical tbh. It seemed like Atlus was going to make something more cliche and... It kinda is but in a good way? It's like an adult version of a JRPG, with elements of Persona and Shin Megami Tensei.
-
Comment on Hi, how are you? Mental health support and discussion thread (November 2024) in ~health.mental
Raspcoffee Link ParentOh man I'm so sorry. Those are really vulnerable people you work with and are at the most risk of getting caught in the crossfire of this era. :/ I wish I could say something encouraging about...Oh man I'm so sorry. Those are really vulnerable people you work with and are at the most risk of getting caught in the crossfire of this era. :/
Oh and not documenting students' immigration status is a new thing.
I wish I could say something encouraging about this but we both know that is not what it is about... Thank you for what you do. That is incredibly dark.
-
Comment on Hi, how are you? Mental health support and discussion thread (November 2024) in ~health.mental
Raspcoffee Link ParentYour students are very lucky to have a teacher so empathetic and caring. Thank you for your work.Your students are very lucky to have a teacher so empathetic and caring. Thank you for your work.
-
Comment on Is ADHD really that debilitating? in ~health.mental
Raspcoffee Link ParentDont forget to add the mixture of us forgetting things quickly to the mix. Making for many, many not-so-funny pingpong dynamics of forgetting and struggling with fixing shit we forgot. The social...Even shit like resetting a password
Dont forget to add the mixture of us forgetting things quickly to the mix. Making for many, many not-so-funny pingpong dynamics of forgetting and struggling with fixing shit we forgot.
The social issues that stem for it are horrible.
-
Comment on Is ADHD really that debilitating? in ~health.mental
Raspcoffee Link ParentThis sentence describes my masters thesis experience to a T, ADHD really made me ineffective for weeks at times. The shame that goes with it is often not talked about, wildly misunderstood and...I have trouble breaking down large tasks into smaller ones. Sometimes, I'll get so overwhelmed by a larger task that I'll end up basically frozen in place and afraid to approach it. I have trouble switching between multiple tasks and dividing time between them. If I don't do little things (like mandatory education modules) immediately, I frequently completely forget about them.
This sentence describes my masters thesis experience to a T, ADHD really made me ineffective for weeks at times.
The shame that goes with it is often not talked about, wildly misunderstood and affects us horribly. :/
-
Comment on Understanding the leftist that didn't vote: "Everybody else gets one, but not me" in ~society
Raspcoffee Link ParentYeah, personally, I think the US needs a movement for a proper reform of the political system - the systemic changes that are, imo, needed, are pretty thorough and probably difficult to achieve...I agree that Kamala was fighting a losing game. She didn't have the ability to make the systemic changes required, nor do I think that alone would have won her the election. Trump catered hard to the crowd who wanted to blame everyone else for their troubles. He's very much stoked the "YOU vs THEM" arguments and it won him the election.
Yeah, personally, I think the US needs a movement for a proper reform of the political system - the systemic changes that are, imo, needed, are pretty thorough and probably difficult to achieve without such a thing. I don't even know how it'd be possible for such a grassroots movement to start though. That said, I wouldn't be surprised if the aftermath of Trump's second term will cause enough ruckus for it to form organically. At least I hope so.
It sucks for Canada because as US is our largest trading partner, Trump's ideas of "America first" are going to screw us over big time.
Yeah, I'm from the Netherlands and some of his import policies are going to hurt us, as a trading country, in particular. I can only imagine what it's like for you guys as your only neighbour. Take care man. :|
-
Comment on Understanding the leftist that didn't vote: "Everybody else gets one, but not me" in ~society
Raspcoffee Link ParentIf it helps to some extend... I remember that I had very snappy responses to other people about the internal politics of my country, the Netherlands, even when they discussed in good faith, after...If it helps to some extend... I remember that I had very snappy responses to other people about the internal politics of my country, the Netherlands, even when they discussed in good faith, after we had an election where the far-right PVV won. I can't say for certain whether that's what's going on here too - I can't speak for others and I certainly cannot read minds of others - but it may still be too early, to raw if you will, to have a good discussion with people who are going to be directly influenced by this recent election.
In recent months I started to realize, despite all the niceties of the site, majority of Tildes is a fan of the status quo politics in many ways, which of course has a lot of alienating narratives.
If I may add something here, for people to be alright with change they often need to feel safe with changing. Well, or they need to feel like they current status quo is unsafe and an alternative is safer. So
Holding even more tightly to the status quo doesn't obviously work.
Is something I agree with, and I do see some good discussion in this thread as well. When I take a step back the impression I get is that it's simply very raw. Add the current context of the middle-east and well, it's not as much as that people like the status-quo, but more of a 'everything-is-raw-and-heated-so-default-feels-safe' kind of scenario. With the US, the two-party system, Electoral College, it's history of two opposing factions and the polarisation that is occurring in many places it's easy to believe one side can protect you from the other.
That is too say, I agree with many of your points. Though I'd take in the context differently into account. That's just my view though, and emotionally people are in so many different places that I may be completely wrong.
Disagreements aside, I appreciate your presence on Tildes. Partially because you're willing to go against the flow of opinion here, but also because you often bring different perspectives on the table. Cheers
Yeah that's sloppy on my part, thanks for the correction. It does have a lot of constraints, same as with the standard model and GR.