Al Salam Alaykum. I was going through some QI clips on youtube and one had a title of " [celebrity name] mathmagician." I thought it would be a great math feat but at the end of the video it turned out to be one of those math tricks where if you follow some steps with any starting number, you always end up at the same answer. This leads me to ask, is watching such a video haram (especially without preemptively guessing that it involved 'tricks')?
I read before that pursuing or watching magic tricks stops you from getting good deeds from your salah for forty days.
This question seems absolutely silly. But given the big consequence, I just want to know.