Its not about defense, its about information efficiency. Bad events are rarer, and knowledge about them is more valuable than good events. Lets say that you ha

Its not about defense, its about information efficiency. Bad events are rarer, and knowledge about them is more valuable than good events. Lets say that you had to walk through a minefield with a set number of mines. You could pay me $10 for a piece of information. I can either tell you a spot with a mine, or a spot without one. How do you spend your money?