Black holes can exist with any amount of mass, as far as we know. You can calculate the size of the event horizon for any given quantity of matter. IIRC, even the Planck Temperature is the limit to our current understanding that it is because a photon emitted by an object that hot would be energetic enough to form a little tiny black hole.

This graph shows a few things about black holes in a way that I love.

1. Black holes do have a lifetime and are not eternal. I think somebody already mentioned Hawking radiation.

2. Extremely small black holes actually have a pretty short lifespan. The math says they glow brightly and basically explode as they get close to fully evaporating.

3. Black holes with any appreciable mass last a REALLY fucking long time. A black hole with only the mass of the Red Sea or Greenland would last many orders of magnitude longer than the longest-lived red dwarfs, which themselves go for trillions of years. An online calculator tells me that the Schwarzschild radius for 10^20 kg (roughly greenland on the graph) is 1.4852e-7 m, so sub-micron in size. And though it will not last forever, it will still be virtually unchanged in trillions of years after every current star burns out.

I also hit up Wolfram Alpha’s black hole lifetime calculator. For 10^20 kg it gives me 2.667 x 10^37 years. For one in the range of metric tons or less, you are looking at nanoseconds or faster. For a black hole to last longer than a second, you need to be up around a quarter of a million kilograms.

So when I said they are supposed to basically explode as they get tiny and evaporate? The most powerful hydrogen bombs convert a couple kg of matter to energy at most. A 250,000 kg black hole converting entirely to radiation in just a second must be some crazy shit.

I actually used to do single dots in my own file/folder names. It’s probably my favorite way visually, since it’s a minimal separator and as you showed it works without a separator at all.

oh yeah. There are numerous benefits to the format itself, outside the question of hyphens vs slashes.

I find the sortability quite satisfying, but also as somebody living in the US, I also like that it’s unambiguous regardless of my audience. Hell, half the time I see people hand-write a date on something they don’t even use a year.

Oh they’ll give “answers” alright. They could just be wrong or untethered from reality.

Yep and it needs to use hyphens and not slashes. It helps avoid missed typos or mis-reads in some situations, especially if hand-written.

Maximum tip-to-tip efficiency or it’s back to apprenticeship with you!

Go after the companies

Sir this is a Merica.

That quote makes it sound like he really understands why the users might not want him to destroy reddit.

Which also makes it sound like he is fully aware of his own conscious choice to destroy what could be a valuable resource for millions of people just so his sorry little ass can get slightly richer than he would have already been.

It would be nice to be able to consider more asian brands than just japanese and korean when next replacing a car and ignoring everything American.

American Christians’ two most hated hot takes on fellow humans seem to be what Jesus says about marginalized groups and what the Statue of Liberty says about marginalized groups.

usenet + fediverse = that good internet you been looking for.

And yes, I’ve been hugely popular at both parties I’ve attended.

Well obviously! Everybody here can see you have at LEAST two shit-hot science facts just ready to go when the house ain’t bumping.

Not all heroes wear capes. Some stick with lab coats.

This probably isn’t common for a lemmy linux nerd, but I have spent a few grand on lumber over the past two years for various projects.

I bet one could build a properly superior hobby-sized siege engine for a total budget of $1000!

The fediverse isn’t worth saving after all.

The fediverse shouldn’t need A savior. It should be its own thing that no one person can control or stop.

Maybe this… Maybe this is the fediverse healing? 🥹

Of course it’s the saunas, lol.

The border between Finland and Russia is 1,340km long. This has helped them become best of friends. They especially like to cuddle for warmth in the winter.

I think it’s less about genuinely caring at this point and more about it being a home-grown meme. Plus it’s perfectly designed to be popular around here because it directly involves individuals and you don’t have to lean on Star Trek, Linux, or even beans for it to get attention. Those three things are good, but people like variety.

My windows “partition” for work is just a single VM image that sits on one of my two Linux-formatted drives.

More AI + blockchain = breaking the economy

I bet there’s a strong correlation, at least among we olds, between the number of times one has installed Windows and the likelihood that they are now a Linux user.

That’s how we know that Linux is easier to install these days, for one.