dunning-kruger syndrome

This psychological concept is something related with the quote of Bertrand Russell "The whole problem with world is that fools and fanatics are so certain of themselves, while wiser people so full of doubt."

Dunning-Kruger syndrome could be simply defined as confidence of ingonrant people against hesitation of more qualified ones.

Interestingly, some research shows that remarkable amount of senior executives owe their posessions to this syndrome.