when you go on youtube to watch videos(youtube CAT videos?) and you end up on a completely different subject
guy1:hey look, funny cats
*about 1 hour later*
guy1:holy shit did you see the alien!?"
guy2:how the fuck did we get from cats to aliens?
guy1:we watched cat vids, the it was linked to funny youtube channel,which was a video response to a youtbe poop which was about bigfoot, which was linked to u.f.o's which are directly connetcted to aliens