all right you want it specific, eh? ok ill give it to you plain and to the point:

you shouldn't be so quick to doubt things like that, you should be quick to perfect an idea instead of shooting it down with your negative "realism". there is a fine line between shooting down an idea with destructive criticism and using the same criticism to shape and fix an idea with constructive criticism so that it is true and real ok? that is my point. not my only point mind you, but it is one of my main points.