Multiverse theory... Its fascinating

Theorically speaking... Infinity universe exist so like most of these manhwas and whatever you're reading is true, or actually something more interesting is that in an alternate universe the tragic endings in yk stories have a happy ending. The author decided to make it happy. The stories went on a different path, the main character is different. Like just imagine your fav series being so done differently in another universe. Maybe it's even written by you.

There's this theory ongoing that us dreaming is us transporting onto other realities or universe, hence why we don't realise we're dreaming. Like in my dreams I often dream of my exes where I end up having family with some of them. It's kinda funny it happens when you're trying to move on lol.

Tldr: do you guys believe in this multiverse theory if so what's your thoughts on it