Eli5: How can games like minecraft or no mans sky be essentially infinite, yet take up a very small amount of storage?

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No mans sky is like 18GB or so on my PS4, yet there are 256 galaxies and literally around 18 quintillion planets. It can be played completely offline too, so it isnt coming from some server somewhere

I understand they’re procedurally generated, so they dont even exist until you pass through that area, but even after playing for countless hours and crossing thousands of miles of landmass, the save file is still extremely small

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Anonymous 0 Comments

2a=b. This formula needs no space at all. But it can draw an infinite line. Infinite!

Stuff that get’s changed or generated in minecraft is like that formula. It takes not much space at all to store some math.

What actually takes space is textures and graphics. There are not a lof of them in Minecraft. Everything is build out of the same blocks.

To come back to the base principle: Text or numbers takes almost no space. Minecraft can save every block you changed as a short number.

A whole book is some kb. A 5 Minute video can be multiple GB.

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