It's because of the wave nature of electrons!
Whoa, hang on, it's because of the particle nature of electrons!
Pssssh, fools! Relativity! E=MC^2. You're welcome.
Wait, wait - I got this - we have this cat in a box and it dies, or something... I'm pretty sure this has something to do with it.
Hold on, I think it's because of innumerable, invisible vibrating strings that permeate the universe.
Noooooooo, it's from this thing called the Higg's Boson and once we understand it, it'll explain it. Ah, shit. Now there's two.
Well, no one really understands gravity, so it is probably caused by whatever causes that. Um, dark energy/matter, perhaps?
Well, at least there's a parallel universe wherein we do figure it out.
Just because something's complicated doesn't mean we don't try to figure it out. If we see a trend or occurrence in a scientific discipline that is unprecedented or poorly understood, then we try to find the a reason or cause for such anomalies. In this case, finding a cause (or several causes - which is more likely to be the case) could help us prevent similar incidents in the future and potentially save lives. Isn't that worth the speculation? Besides, societal trends, regardless of the complexity of a society, are still less complicated than theoretical physics.