I used to have trouble believing there was a time I didnt exist personally, I used to believe i had existed forever in limbo before being born(as an adult I learned that wasnt even what catholic limbo was supposed to be),so, according to Disculogic youtube channel(it seems proffesional enough,not pop-sci)and even to roger penrose's model of a cyclical universe(time-less, eternal universe model which includes big bangs), the poincare recurrence would indeed mean "I was right"

now some questions
>am i getting it right or misunderstanding?
>can belief in the poincare recurrence co-exist with belief in everettian multiverse,or it cant?

What other scientific (non-religious) rabbit holes and serious ,drive-you-mad theories are there?