@Dollface competes with chris derose and tone vays for the biggest ethereum hater crown. Not having 100% confidence is only natural for any sane person, especially when you work in a (still) niche field that's still in development. How about this tweet dollface, do you agree with it ?
https://twitter.com/VitalikButerin/status/870711337592078336Or better, do you have 100% confidence that your wannabe crypto project will be succesful ? Of wait, it already failed to launch. But you kept goin, why ?
Do you have 100% confidence that your girlfriend won't cheat on you ? Do you have 100% confidence that your bank doesn't go bankrupt and lose your savings ? Do you have 100% confidence in your neighbours ? And it can go on forever. Point is, you can't.