Is it possible that we see these as big problems partially because they can't be solved by startups? If these could be solved by startups then they would no longer be big problems and some other problems would pop up which couldn't be solved by startups and would be referred to as the "big problems."
i definitely think it's possible.... but i still think it's a pretty big problem when basic medical information is harder to access than last week's restaurant reservation
I definitely think that's true, but I think that your own construction of the problem supports my point. Last week's restaurant reservation is easy to access because it's a problem that can be addressed by startups. In other words, the reason why medical information is a "big problem" is that it hasn't been vulnerable to the same advancement that we perceive in other industries, mostly due to its barriers to entry. Without those barriers to entry it wouldn't be a "big problem," it would just be another thing that gets better with advancing technology.