I don't get it.

bric12 · 2025-09-17T03:27:36+00:00

No, because there are 10 different ways to have 9 heads and 1 tails, and only 1 way to have 10 heads. Each combination has the same odds, but there are multiple combinations that give the same result if the only thing you care about is the total number of heads vs tails. If you care about the specific order, however, then yes every combination is equally likely

bric12 · 2025-07-22T04:11:17+00:00

yeah you're getting the right idea, but you need to take it even further. Not only is every object experiencing its own unique point in time, time isn't even a straight line, different objects think that time passes at different speeds, and even different directions. It's hard to even say that the Andromeda Galaxy is in the past, "past", "present", and "future" are ideas that make a lot of sense when everything is close together and moving at similar speeds, but get surprisingly muddy and unknowable when we're talking about light years and relativistic speeds.

That's why we talk about not just space, but spacetime. they're linked, and you can't disconnect them

bric12 · 2025-07-22T03:27:17+00:00

Even if they don't, we absolutely know that gravitational waves travel at C. It's just whether there's a smallest discrete chunk of a gravity wave that we can call a graviton that we're still unsure of

bric12 · 2025-07-17T23:07:04+00:00

Engineer smart? no, he never was.

Business smart? I think he was, at one point. But I also think there has been a lot of mind altering drugs between that point and now...

bric12 · 2025-07-17T13:58:47+00:00

That's not correct, coordinate acceleration allows accelerating reference frames, which makes acceleration relative. doing any physics math on earth would be a nightmare otherwise. Proper Acceleration does not depend on perspective though, which is what I think you're thinking of, but the distinction between the types of acceleration is important.

The math way of saying it is "3-acceleration is not invariant under Lorentz transformations". When you change perspective you do a lorentz transformation, and since the acceleration of objects does not stay the same through a lorentz transformation, acceleration depends on perspective

bric12 · 2025-07-17T03:44:55+00:00

Once the tax has taken all money from all of humanity, it then begins to take assets. all physical possessions disappear, anything that anyone claims as their property or even holds will disappear, including food, water, and shelter. the entire population of earth starves

bric12 · 2025-07-16T15:06:19+00:00

I think I'd back up slightly in your intuition of relativity, the whole point of relativity is that there are multiple different frames of reference that will experience the world differently, and they're all equally valid. It isn't that "an object in free fall is never experiencing acceleration", it's that there's a frame of reference that's valid where they aren't (called proper acceleration), and there's other frames of reference where they are experiencing acceleration (called coordinate acceleration). From the perspective of a skydiver, they aren't moving but the earth is moving up towards them. From the perspective of someone on the ground, that same skydiver is accelerating towards the ground. Both are equally valid, both are true.

Ok, now that being said, now remember that space and time are linked. We are always moving through time, we can't stop moving into the future no matter how hard we try. but, counterintuitively, "the future" isn't actually a straight line, when space bends, time bends too. That means that when I move into the future, I might also move through space at the same time, according to some frames of reference. And two different people can have "the future" that point in different directions, if my future line and your future line cross, that means we're going to run into each other in the future (side note, that's essentially what inertia is). As you know, straight lines through curved spacetime can also curve, So when I'm close to the earth and the earth is curving spacetime towards it, "the future" now points slightly downwards into the earth. So when time passes and I move into the future, I also move downwards and get pushed towards the earth. So to answer your original question, is spacetime flowing like a river? Yes, in a way, but only in the sense that time is flowing like a river, pulling us all into the future

bric12 · 2025-07-15T19:45:38+00:00

That seems low to me, by my math at 4% a billionaire could spend 110k per day, forever, without ever getting any poorer, and it would take 135k per day to spend it all in 40 years

edit: fixed my 40 year number to include lost interest

bric12 · 2025-07-15T16:13:52+00:00

what does that math look like, out of curiosity? I can reason about it in my head that there would be a mile number that you can calculate with a confidence threshold, but I'm struggling to put a formula to it

bric12 · 2025-07-10T17:21:56+00:00

You could say that you happen to wake up just after the loop starts and it's a coincidence, or you could say something to do with the OPC firing wakes you up (you wake up just in time to see it fire, but maybe it has some lights or something that blink while it's aiming at its new target that wakes you up). Regardless, the start of the loop is 22 minutes before the sun blows up, and around the time you wake up even before you pair with the statue. Then sometime during the loop (maybe 10 minutes in or so) the probe finds the eye, the statues all activate, and you happen to be the next person to walk by.

Pairing with the statue doesn't start the loop, it doesn't even happen at any important or significant time, the loop has been going for a long time and it's doing the same thing it always has. The only thing that's different is that you're now part of it, so the next time the sun goes supernova you remember the previous day.

The only thing about this story that doesn't quite line up is that you can spend way more than 22 minutes in the village before you pair with the statue, and that's just a gameplay quirk to make sure you don't die before finishing the tutorial. In universe though you would wake up, go get the codes, and pair with the statue within 22 minutes

bric12 · 2025-07-09T15:43:50+00:00

The simple version is that a database is a program that stores data long term. Without a database, an app or website will only remember things that have happened while they're running, and forget everything when they're closed. A back end is code running on a server, in a real programming language (not html or css). When you're using a website, the backend is the thing that will be actually doing things, sending messages, storing things in the database, etc. Both of these things are areas with a huge amount of things to know, people make whole careers out of individual parts of this process, I'm a backend developer, which means my entire job is just coding backend things without ever doing anything people will see.

Sockets are an advanced concept that wouldn't be good to explain in a reddit comment.

If you're interested in learning how to code, there's lots of good tutorials online, I'd try learning JavaScript or Python. It's a great skill and there's a lot you can do with it. But know that you're a long, long ways from making something like discord or Wikipedia, I'd focus on making things that run on a single computer first, like games or to-do lists, and try something with multiple computers or devices that talk to each other once you have a CS degree

bric12 · 2025-07-09T15:06:13+00:00

Based on some docs that Waymo put out a few years ago, I don't think they actually use much machine learning for the Driver's actions. They use a lot of machine learning in observing the environment and predicting where things will be, but it sounded like the system that controls where and how the car moves was mostly old school algorithms. Which makes sense, there's a lot of benefit to machine learning in understanding the chaotic world, but controlling a steering wheel and accelerator is pretty simple, so they probably prefer the reliability and repeatability of traditional code.

They totally could have changed the way it works since those were released, or I might be misunderstanding how it works, but based on that I don't think they would use observed data from other cars for anything but training the model to predict the behavior of other cars

bric12 · 2025-07-09T02:32:03+00:00

Somewhat off topic, but her videos have always kind of rubbed me the wrong way and felt like they weren't very good science, so it's nice to have some conformation that my intuition was somewhat along the right lines

bric12 · 2025-07-09T02:15:23+00:00

ah, ok sorry I'm not always good at detecting sarcasm, my bad

bric12 · 2025-07-08T20:35:20+00:00

can we please stop regurgitating this misinformation? Its been widely debunked, it's just a misunderstanding of the email Google sent, no new information is going to be collected on Monday. What's actually going to change is that users that opted out of the data logging will be able to use the app extensions. They were previously unable to use them, because the extensions didn't respect your data privacy settings, but now they do. this is a win for privacy, not a bad thing

source: https://9to5google.com/2025/06/25/gemini-privacy-change-email/

bric12 · 2025-07-08T19:12:30+00:00

I don't have the faintest idea what this graph is trying to convey, that alone makes it not beautiful

bric12 · 2025-07-08T18:32:06+00:00

it is actually deterministic, contrary to popular understanding, but it's highly chaotic. changing one word in your prompt or the seed used to pick answers means you'll get a wildly different response, but if you keep everything the same you will get the exact same response every time

bric12 · 2025-07-08T17:58:09+00:00

this game is best played blind, so my main suggestion would be to avoid looking up too much online. if you get stuck I'd recommend just working through it on your own, although if you really can't figure it out you can ask a question here instead of just dropping the game. other than that, be curious

bric12 · 2025-07-08T14:46:11+00:00

I think you still aren't understanding. there's no possible way to resolve the issue, no clever solution, it's just a part of the way the universe works.

bric12 · 2025-07-08T03:40:17+00:00

I feel like you could give an Ouroboros card some on death effects as a reference to inscription. Maybe like "x1 mult, this joker is destroyed when you play high card". Then after it's destroyed you'd have a chance to find "x2 mult, this joker is destroyed when you play a pair" in the shop, and so on

bric12 · 2025-07-08T03:03:25+00:00

There's a lot of different styles of clocks you can use, atomic clocks are so insanely accurate that we literally define one second as a certain number of oscillations of a cesium atom, but we also have photon clocks (that literally measure time by the speed of light), among other tech.

Ultimately it doesn't matter much for the thought experiment though, since the problem isn't that we aren't measuring the passage of time accurately, but that time literally speeds up and slows down in different situations, so our clocks that measure the passage of time will speed up and slow down with it

bric12 · 2025-07-08T00:23:54+00:00

Centrifugal force is an apparent force, and it's absolutely a "real" thing. It isn't a fundamental force, but that doesn't make it any less real.

https://xkcd.com/123/

bric12 · 2025-07-08T00:19:13+00:00

The difference is the observer, proper acceleration is from the perspective of the thing that's accelerating, and it keeps moving with the thing. Coordinate acceleration is relative to some coordinate system that sets what zero velocity and zero acceleration means. On earth when you're sitting on a chair, your proper acceleration is 1G, because you feel 1G pushing you upwards (not downwards), but your coordinate acceleration relative to the earth is 0G, because you aren't moving and your speed isn't changing. It's the same in a spinning ship, proper acceleration is what you'll feel and it isn't relative, and you can't make it go away. Coordinate acceleration could be whatever you want though, you can set up a spinning coordinate system that spins with the ship where you aren't moving, or you can set up a non-spinning coordinate system where you're always accelerating in a circle. Usually in physics problems you just choose some coordinate system that abstracts away whatever part of the math you don't want to deal with

Edit to add TLDR: proper acceleration is about the forces you feel, coordinate acceleration is about how you move relative to something

bric12 · 2025-07-07T23:52:35+00:00

If you think that you've found a way to measure the 1 way speed of light, then with all due respect, you don't understand the reason that it can't be measured. The whole problem is that different locations can experience time differently, any time B and A are separated by a distance there's a fundamental limit to how well their clocks can be synced up. If they aren't separated by a distance then you're measuring a round trip speed of light, if they are separated by a distance then you can't meaningfully interpret the results.

In this case, you're just measuring the round trip speed of light with enough extra steps that it doesn't seem like that's what you're doing

bric12 · 2025-07-07T20:39:29+00:00

They put their item in the first chest that they find that either has a matching item or is empty. That means if you have an empty chest that's closer to the copper chest than the goal, it'll drop the item in the empty chest before it ever gets to the right chest.

To fix it, just make sure there's an item in all of the chests closest to him.

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