system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If we are our brains, where am "I" (the voice in my head) inside of all that mass of neurons and connective tissues?

Mainly curious about the voice in my head when you think about things. Where am "I"?
gpt
That's the problem of consciousness: we just don't know.

There are some who think that consciousness is a purely physical phenomenon: get enough neurons in one place arranged correctly and poof! conscious person.

Some believe that it's not physical, or that we don't know the physical properties that make it up yet.

Of course, it's also possible that you're the only conscious individual in existence, and everyone else is just a construct of your mind.  In that case, consciousness is a property of the universe, and you are the universe.