Not my info but this year a classmate confided in me the following:
"it took an embarrassingly long time to realize that men have multiple holes on their penis".
I thought she was joking but she was dead serious, (she was from a very conservative family to put it mildly and had been withheld from sex-ed their entire life). For some reason they insisted arguing about it with me and the other guy present.
I was 22 and she was 21.
I may be wrong but I thought it was generally believed that the Universe is infinite (or at least that that was the most common belief among those that are qualified in the field)
Edit: I mean infinite in Space, of course it hasn't existed forever
Edit2: I quickly read this article https://www.swinburne.edu.au/news/2021/08/Is-space-infinite-we-asked-5-experts/ where the 3 astronomers answered maybe, yes, and yes. Whereas the two non-astronomers answered no. Since this seems to agree with me I will believe that this is correct and not investigate further
I think the idea was two holes right near each other on the head, one for piss and one for cum lol