What holds back innovation?

I think its closed mindedness and not having a big picture view. The small details and elements matter along with cost and value. But without an openmind to new ideas, and explorarion the process never starts.

Its easy to point out problems and reject ideas, without having tested them, whereas to have a discussion and add to a concept or suggest ways to test the theory in an open and mature manner is much more difficult and productive.

Theres some people who think being critical makes them seem smarter or have power. But really this makes them weaker.

Whats your experience with innovation, open/close mindness in disscussions with managers or co-workers