>>13061043Boltzmann brains
Essentially, given an infinite amount of time, there will spontaneously arise instances where in the hot, disordered soup of atoms that will one day make up the universe if heat death is indeed its fate, a fully functioning brain will form with all your memories. It will think a single thought and then rapidly dissipate into the void... again and again and again
It should be noted that Boltzmann hanged himself.