The Boltzmann brain thought experiment suggests that it might be more likely for a single brain to spontaneously form in a void, complete with a memory of having existed in our universe, rather than for the entire universe to come about in the manner cosmologists think it actually did.
The Boltzmann brain
https://m.youtube.com/watch?v=4Stzj2_Rlo4
If I ever get thrown into an insane asylum, it’s probably your fault.