We humans and our economies, I'd imagine. Because the problem isn't just Uber. It isn't even just tech. The fear of meat shortages is because we've condensed to very few, very large meat distributors, and a couple of them had outbreaks. I know less about this first-hand, but previous comments on HN have detailed how optimized the toilet paper supply chain is such that it can't absorb people working from home all of a sudden. Bigger, more standardized, more efficient, ruthlessly so, and then can't handle a virus. Borg-like.