I hate these drink-the-Kool-Aid articles.<p>Doubt is healthy and normal. If you don't have doubts about whatever path you're on, you're probably not thinking clearly enough. If you truly don't have <i>any</i> fears about risk, you're missing a critical self-protection mechanism that comes factory-standard for even the most primitive creatures on the planet.<p>In particular, when I encounter people who suggest that I shouldn't have any doubt about an financial transaction, I hide my wallet and back away slowly.