By disregarding intuition in favor of science, or science in favor of instincts, we limit ourselves.
Intuition is one of the four basic psychological functions along with thinking, feeling,and sensing.
There is no prescribed route to follow to arrive at a new idea. You have to make the intuitive leap.
All perceiving is also thinking, all reasoning is also intuition, all observation is also invention.
Intuition comes very close to clairvoyance; it appears to be the extrasensory perception of reality.