By whatever means, the aim in this ideation step is to generate a large number of
ideas without particular regard to quality. But, at some point, your "mental well" will go
dry. You will have then reached the step in the creative process called frustration. It is
time to leave the problem and do something else for a time. While your conscious mind
is occupied with other concerns, your subconscious mind will still be hard at work on
the problem. This is the step called incubation. Suddenly, at a quite unexpected time
and place, an idea will pop into your consciousness, and it will seem to be the obvious
and "right" solution to the problem ... Eureka! Most likely, later analysis will discover
some flaw in this solution. If so, back up and iterate! More ideation, perhaps more
research, and possibly even a redefinition of the problem may be necessary.