In a world where the theory of survival of the fittest exist, there is also a place for the concept of visualization and actualization.
To visualize is to imagine a creation, pattern or other related things in the corners of the mind.

In the execution of a concept, it involves first of all thinking of something which can be possibly executed followed by a string of sequential or non sequential arrangenent of how the concept should be implemented.

A concept is incomplete without an order to it. The order defines how and when it should be executed. The value of concepts provides room for invention and value creation in any given society.

A concept can be as short as a minute execution to something as long as a lifetime of continual execution. The reason for execution of concepts is more of like a verifying process of thought or "proof something " ...
So the execution of an idea or concept verifies the idea or concept.

Concepts which are good and are not executed are terrible and might leave the original person who came up with such unexecuted concepts as "half baked" sort of and places us in an uncompleted cycle.
Go out, visualize/conceptualize and actually decide to actualize.