Long story, but I've ended up becoming the admin of a group on Facebook (the previous admin stepped down in a rush, and added me as he left). And the group has an existing group chat associated with it.

Is it possible to "moderate" this group chat? Specifically, as an admin of the group, can I remove unsavoury/unwanted messages from the chat associated with the group? It looks like I can't.

Can even the creator of a group chat do this? If I close the group chat and create a new one, will I (as its creator) be able to remove unsavoury/unwanted messages from that new chat?

I've done some searching via Google, and I'm not finding anything to indicate that this is possible. If someone posts something unsavoury in a group chat, it looks like the only option is to remove the person from the chat - but the unsavoury messages can't be deleted.

Please tell me that's wrong!

I thought it might be fun to make a little game out of asking Fermi problems and trying to work out solutions to others'.

What is a Fermi problem?

A Fermi problem is (to quote wikipedia ):

an estimation problem designed to teach dimensional analysis or approximation, and such a problem is usually a back-of-the-envelope calculation. The estimation technique is named after physicist Enrico Fermi as he was known for his ability to make good approximate calculations with little or no actual data. Fermi problems typically involve making justified guesses about quantities and their variance or lower and upper bounds.

Basically, these are questions that would be very difficult to calculate exactly without looking up the answer. The goal is to arrive at a good estimate by making justified assumptions. As such, looking up facts and statistics should be minimized or outright avoided (e.g., if the question is "What is the mass of the water in Lake Michigan?", you shouldn't look up Lake Michigan's volume to aid your answer. This should be estimated from things you know off the top of your head).

The way this thread works

1. If you have a Fermi problem, post it as a top level comment.
2. If you have a solution to an already posted Fermi problem, post it as a reply to that comment. Be sure to post your reasoning and thought process.

Fermi problems can be fun to come up with, and fun to answer. Examples of Fermi problems might include:

• How many piano tuners are there in Chicago? (this one is apparently one that Fermi came up with himself)

• How many keystrokes occur worldwide, daily?

• What is the mass of the water in Lake Michigan?

• How many cars are there in New York City on a given day?

• How many blades of grass are there on the National Mall?

• How many eggs are consumed in the US each day?

Since many of these have no definitive answer, it is not always possible to score the 'correctness' of an answer. Nonetheless, others can judge when an answer makes reasonable assumptions, so feel free reply to answers with suggestions of which assumptions can be refined or further justified.

Hey Tildes!

I've got a static, basic website, HTML and CSS. It's one page only. But I'd like to create a second page with some more private content that is password protected.

I know that I can accomplish this via .htaccess but what I don't like about this method is that when the user navigates to the page, they get a pop up asking for a username and password. What I would like is having the user navigate to the page, and then they are met with a simple form asking for just a password (no username). After they enter the password, the "veil" lifts or the page forwards and they get the private content.

Here's the thing... the content really only needs to seem private. It's not super secret, personal information. I don't want it indexed by search engines (nofollow), and I want it basically hidden, but the password is only there to make the user feel exclusive. If some tech-minded person encountered this page and jumped through a bunch of hoops to get in without the password, it's not a big deal to me. In reality, 99.9% of people accessing this page will not be able to bypass the password.

I'm guessing this can be accomplished easily in Javascript, but I don't really know much Javascript apart from finding code snippets and plunking them in. I also want to be able to fully design the password entry page so that it looks branded, so a code snippet plunked down into my HTML doc would be great for this.

If there is an easy way to actually protect the content behind the password, that would be excellent. In this case, I imagine it would be much like a news site with an ad-blocker-blocker. Just some kind of pop-up that blocks all the content. Enter the password, and you're in.

Anyhow, I hope I've described what I'm looking for accurately enough. Anybody have any easy and quick ways to accomplish this?

This simple stylus userstyle hides vote counts on both voted and unvoted comments and your own comments. I really like what Deimos did, it significantly improved my time here on Tildes. If you want the feature back, install Stylus extension, click the Stylus icon > write style for tildes.net and paste this:

/* Hide vote count for unvoted comments */
.btn-post-action[name="vote"] {
    visibility: hidden;
    position: relative;
}
.btn-post-action[name="vote"]:after {
    visibility: visible;
	content: "Vote";
    position: absolute;
}

/* Hide vote count for voted comments */
.btn-post-action[name="unvote"] {
    visibility: hidden;
    position: relative;
}
.btn-post-action[name="unvote"]:after {
    visibility: visible;
	content: "Voted";
    position: absolute;
}

/* Hide vote count for your own comments */
.comment-votes {
    display: none;
}

Known issues

• There is extra padding around Vote button
• Extensions such as Vim Vixen cannot interact with Vote button

Hey everyone! I was browsing around and came across this old topic again, late 2000's skeuomorphisism vs modern flat design. I've always strongly preferred the former for a variety of reasons and thought flat design was a regression, but I was curious, what do you guys think?

I've been learning Laravel, and familiarizing myself with the framework by coding up a blogging website. Right now, it's minimally functional, and I'd like to add some more features to it. Since this is my first project with Laravel the code is a mess, and it's just about time for me to rewrite the whole thing. Before starting that, I'd like to have a better idea of what my final product should be. I don't want to recreate WordPress in Laravel, but I do want to have something I wouldn't spit at. Basically a project that would be good as a resume builder if I ever needed one.

So far, my website allows users to...

• register for an account, log in/out, update their email address and display name
• create posts with a WISIWYG editor
• upload files
• create profiles
• and manipulate everything through CRUD.

What do you think the minimal features a blogging platform needs to have to be "complete" and usable as a stand-alone system?

Thought a thread for this miniseries would be good, as I've only seen discussion of the trailer up here. As of today (16th May) there are two episodes out, and a companion podcast for each (though I've not listened to these yet)
I just watched both back to back, and I'm blown away. This is some very well made television, and somehow manages to be simultaneously nightmarish, and fully gripping. That this is based on real events is all the more amazing to me, and after watching the revelation about the exploding water tanks in the second episode I'm astonished that the world is as unscathed by this disaster as it is.

I try to be privacy focused. I don't use social media, I use Firefox with adblock and tracker protection, with duck duck go as my search engine. I also pay for proton vpn. My question is, when should I use it? I use it when I'm on open networks on my phone, but that's about it. Do you guys run it 24/7 on your computer?