Visionary ??

So, what does it mean to be visionary, especially in architecture? Contrary to the common notion that it just means something that is utopian, rather, I think it is best described in the movie "The Corporation".

To quote,

" ... ... Civilization is not flying because it is not built according to the laws of aerodynamics for civilizations that would fly. And of course, the ground is a long way away from the fall off the cliff.
But some people have seen that ground rushing up sooner than the rest of us have. The visionaries have seen it and have told us that it is coming ... ..."

Am I able to see that 'ground'? Or, am I just looking at the wrong direction?