The biggest (meaningful) number of them all

If I follow you toward that infinite expansion, I'm projecting outside my skull a representation only imagined within.

Then we need to apply astronomical numbers to neural configurations. Using the mass in a galaxy to make a computer where the logic is on the atomic scale...

10^9 stars, each with 10^57 atoms. The logic of the post is that a group of 10^7 nuerons can have a thought, and there are 10^70000000000 ways to group them. But there are 10^59 groups of this size, each operating independently, which implies 10^(7*10^69) states in a galactic brain#, but let's call it 10^10^70 to be neat and account for dark matter in the galaxy :).

There are around 125 billions galaxies in the universe. Also, we might one day find a way to create matter.

# if my logic is right, that is. I might need a bigger brain.

That's the plot of the Metamorphosis of Prime Intellect, it's about a Singularity where a Strong AI gains control over all matter and energy.

http://localroger.com/prime-intellect/index.html

It's free.