system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 what happens in the brain during those 10 seconds when you wake up and you don't even know who you are.
gpt
Think of your brain like a computer. When you turn a computer on, it doesn't start running right away. It has to boot up first, filling up various bits of the computer with the memory that makes it able to show you cat videos.

When you wake up, it's kind of like your brain rebooting.