When you buy into the illusion of validity, you risk making mistakes at times when you cannot afford to, thus keeping you from achieving success.
Do not mistake confidence for validity.
Confidence comes about when your beliefs and predictions are easy to process and understand, but this feeling is not a good measure of the validity of these beliefs and predictions.
Question where your confidence arises from.
Don’t allow yourself to be dazzled by your own brilliance, and don’t gloss over your losses. Use objective facts to determine the accuracy of your beliefs and predictions instead of the subjective feeling of confidence.