Why is it that whenever anyone mentions "centrifugal force", there's always some smartass who feels the need to chime in with "you know, centrifugal force isn't a real force"? Hey asshole, do you know what a non-inertial reference frame is? Do you even know what "fictitious force" means in the context of mechanics? No? Then shut up. We get it, you took a science class in middle school. You don't sound smart when you correct someone with information that they already know. You sound like a prick. Fuck off. Normally something like this wouldn't bother me, but I see it fucking everywhere and every time I see it I lose a little patience.
One consequence of the internet is that anyone is capable of becoming an expert in anything, given the time. Another consequence is that a large number of people already think they are.