They are secrets and should remain so until they become conventional truths, if they ever do.
Whoever you share them with gets entangled in your pretty little world of great visions. They inescapably become a part of your secrets and how long it remains a secret depends not only on you. As more people know, the factors to its spread grow uncontrollable.
So, inasmuch as your next big idea is so big you can’t hold it in, choosing who to pour it on is not a matter of trust and love. Rather, it is of integrity judged by known or hidden behavioral patterns.