[Pigalowda]

Extreme solipsism is a navel gazing Boltzmann brain.

The runners up are brains in jars and simulation theory.

I feel like a Boltzmann brain knowing that it’s a Boltzmann brain is too good to be true. Might as well make the god of Abraham out of entropy - if you can get a regular Boltzmann brain, why not get the most powerful Boltzmann? Maybe it will take trillions of attempts over trillions of universe births and deaths. But you only need it to work the once.