[davemel37]

Thinking you know everything is a definitive sign that you do not! One of the first lessons you learn from experience is that what you thought would happen, doesn't.

In other terms, you have cognitive biases, emotional biases, and filters your brain uses as information you process goes from perception to short term memory to long term memory...and lots of things get lost in the process.

If someone isn't smart enough to realize his perception of what he knows is colored and influeneced by things outside his control...he probably hasnt had even close to enough experience to be humbled.

Don't be that guy!

[collyw]

Yep, the more I learn, the more I realize that I don't know.

[balabaster]

...and eventually you get to the point I have where you realize you don't actually know anything :P

[davemel37]

Reminds me of the saying, "a specialist is someone who knows more and more about less and less until they know practically everything about pretty much nothing."