My job is actually far more bean countery, so I'm used to being asked to make predictions. But whatever the enterprise there is always a question mark, and the bigger the risk the more faith is required. At some point you have to just jump. I suppose you could call this gambling, but gamblers have faith that they will win, often against the odds, and most successful businesses started with a gamble.
Do you think Elon Musk knows that manned flights to Mars are possible? (No idea why anyone would want to go, but apparently some people do).
Do you think that everyone who funds cancer charities knows that they will find a cure for lung cancer?
Faith is belief without proof, so where knowledge is lacking, the gap must be filled by faith.
Faith can be bat shit crazy, so it isn't always positive, but it does have power.
I haven't had to cross a continent with a hand cart, but I have been in situations, that, to quote Deborah James, require 'rebellious hope', and if that is all you have, that is what you use.