Another risk of working hard is that it requires tunnel vision. Narrowing your perspective makes you vulnerable and requires faith that it will pay off and you

Another risk of working hard is that it requires tunnel vision. Narrowing your perspective makes you vulnerable and requires faith that it will pay off and you won't get burned by something that happens while you have your head down. I guess this doesn't apply to people who work with their heads up, but it certainly applies to a lot of technical folks.