: Why is 4K footage of a game bigger than the game itself?

Question

For example, The Last Of Us Part II is near 100 GB, but if I record the whole game (20 hours or so) in 4K, that video will be like 200-250 GB.

Can anyone explain why?

In: Technology

Answer 1

I write a simple program. It creates a file, writing ones and zeroes to that file indefinitely. This program has thus created another file bigger than itself. There is no reason that this would be impossible.

Games generate the pixels onscreen. They do it in a more complex manner, but the basic idea is the same. Recording each of these pixels takes up more space than the program that produced them.