Finn's Law

Uncertainty is the final test of innovation.

That is, new concepts are tested best by a sudden faltering confidence on the part of the innovator operating in an almost-liminal, almost-sure intellectual state.

Does not the palpable quiver preceding the sudden rush of certainty give that 
final kick to real innovation? 

This is especially good for interdisciplinary areas, where unusual conjunctions 
generally involve more maverick trip-wire than usual.