Rizwan Virk

Well, if you've ever played a game like Farmville, which was

you know, 10, 15 years ago when I got in the video game industry with Facebook.

Wasn't my thing, but yeah.

Yeah, but it was like extremely popular.

And today Minecraft is extremely popular.

That's right.

And so they have crops that grow in Minecraft.

While you're not there.

Now the question is, are they actually growing when you're not there?

What happens is when you log in,

The computer figures out what happened while you were gone.

Yeah.

Yeah.

Not only have they matured, but some locusts came by because there was a percentage of possibility that that might happen, and they destroyed half your crops.

Now, that's the past, right?

Yeah.

But it's figured out when you render the game.

So is it possible that we are choosing from multiple simultaneous histories?

That doesn't mean we're choosing like all the time, but it could in fact be that's a more efficient way to simulate things.

So in computer science, we're always looking at ways to optimize and do things more efficiently.