Don’t waste time trying to over-define your vision. And don’t waste time trying to convince everyone about it.
The bigger your project, the more different it will be from what exists today, and so the harder it will be for other people to understand.
Don’t expect to be understood until you’ve finished, by anyone except yourself. The people who change the world are always nuts — until they are right and then they are geniuses.
So focus on inspiring the people you need to take the next step. And ask them to support you for their reasons, not yours.