I'm not sure... let's do it
One of the myths of leadership is certainty. We overestimate our discernment about whether something will or won't work.
As a result, individually and as teams we look to be 100% certain all the time when this is not only impossible but unhelpful.
The truth is, some of the best decisions you'll ever make and ideas you'll ever have will be uncertain ones. Things where you go, 'I'm 70% sure...' but then they'll go gangbusters.
On the flipside, there will be heaps of things you think you're 100% sure about that will flop.
Learn to embrace this phrase,
"I'm not sure... let's do it."