Live data from Hacker News

Four billion years in four minutes – Simulating worlds on the GPU

davidar.io

31–40 of 108 posts

Re: Four billion years in four minutes – Simulating worlds on the GPU

#31
post #4

Earlier quoted context omitted.

You say that as if you aren't. What proof do you have either way?

why does it matter? If we are, we're in a sandbox that cant be escaped. live your best life and get on with it If we aren't Live your best life and get on with it. I've never seen the point of the question.

Sometimes people like to exercise their brains with random what-ifs. I've never seen the point of people that never let their brain wander.

Re: Four billion years in four minutes – Simulating worlds on the GPU

#33
post #29

Not sure why, but all the shadertoy examples embedded in the page play at like 0.6 FPS for me. When I open the linked "final shader" on the shadertoy website I get 60fps just fine ...

If your browser is like mine, there is a clipped play button below the rewind button that resolves the issue.

Re: Four billion years in four minutes – Simulating worlds on the GPU

#34
post #23

There is an excellent hard science fiction book called permutation city that very related to this topic…it made me feel like i was in a dream when i read this post’s title

I havent yet read permutation city but Diaspora is one of my favorite sci-fi novels. I need to make time for it

Re: Four billion years in four minutes – Simulating worlds on the GPU

#35
post #18
post #9

Earlier quoted context omitted.

When thinking about this one, I always wonder if it even matters.. playing both "Yes" and "No" scenarios doesn't really offer any insight for me. Maybe it's a degree of nihilism but it makes me not get overwhelmed.

A simulation has a nonzero chance of having exploits, and it's debatable whether it is in our best interest to discover them.

I consider biting my tongue when eating a glitch in the matrix. If there's a higher level exploit, I definitely don't wanna know!

Re: Four billion years in four minutes – Simulating worlds on the GPU

#36
post #29

Not sure why, but all the shadertoy examples embedded in the page play at like 0.6 FPS for me. When I open the linked "final shader" on the shadertoy website I get 60fps just fine ...

If your browser is like mine, there is a clipped play button below the rewind button that resolves the issue.

Ah, that indeed works.

Taking a look, the CSS throws warnings about being ignored; adding "position: absolute" fixes that and makes the button fully visible.

Re: Four billion years in four minutes – Simulating worlds on the GPU

#38
post #23

There is an excellent hard science fiction book called permutation city that very related to this topic…it made me feel like i was in a dream when i read this post’s title

I havent yet read permutation city but Diaspora is one of my favorite sci-fi novels. I need to make time for it

Diaspora gives me shivers just thinking about it. Permutation City is fun, but not as inspiring as Diaspora.

Re: Four billion years in four minutes – Simulating worlds on the GPU

#39
post #2

Sometimes I wonder what it’d be like to live in simulated universe.

Well you are in a way, what is a simulation ? It's just a set of rules you follow that are simpler than the more complex environment that it runs in: I suppose if we could "see" "outside" the "universe", we'd understand that maybe our reality is very simple and limited compared to the "reality" outside. Maybe this would be true infinitely, or maybe the outside reality would be much more logical than ours, and we'd accept it's finite.

But since we have a beginning, and a flow of time, we probably also have a birth, a mother, and maybe even a purpose... but that's a very human way to think, might all just be random soup.

But imagine there's a self-aware agent in a simulation we create, he starts thinking the same thoughts, everyone mock him "we're all just random, there is no God, no design, how could so much energy be spent on such a useless giant block of empty space for any reason", he would have to sort of agree, but he would be sort of wrong. And discovering us, would bring him no solace: we can't tell him of our own designers ourselves. Discovering them, would bring us no solace either, for the same reason. That's why the concept of God is stupid: God has a God too, so what do we do now, solved no problem to accept His existence.

Re: Four billion years in four minutes – Simulating worlds on the GPU

#40
Back in 1996/1997 I worked on a CD-ROM game that simulated movement of the tectonic plates, as well as temperature, elevation, and precipitation, over millions of years. Amazing to see how evolution (heh!) of computing hardware and software have come so far in 28 years: https://www.kmoser.com/evolution/
Post reply on HN