You must realize the challenge of something start way, way sooner than when you start building it. To make a project of this magnitude: - your PR must be on p

You must realize the challenge of something start way, way sooner than when you start building it. To make a project of this magnitude: - your PR must be on point; - you must gather the proper support; - you must find en entry point to your problem; - you must decide of a plan for the money in and out. - you must do ALL that in parallel. - and then you'll have several other projects working in parallel, and some will be better than others. And you will have to choose. But you must do the same money/power/pr gathering routing for every single one, even the ones you drops.