It's more probably necessity than coincidence. People tend to innovate a lot more on war/recession times, for a simple reason called survival: if you lose your

It's more probably necessity than coincidence. People tend to innovate a lot more on war/recession times, for a simple reason called survival: if you lose your stability and find no way to get it back, there's little hope other than innovating (if you're able to do that, of course)...