It’s a good thing to be an optimist, but we don’t want to be delusional.
Thinking you have more than a half tank of gas, when in reality, you are closer to a quarter, is not wise. Neither is running on empty expecting your car to continue moving.
We always talk about the “half cup empty” / “half cup full” type of people, yet we rarely talk about both being right.
Both people correctly analyzed the situation and came up with accurate measurements of where they are at. Its is only after making these assessments for ourselves, that we can make better decisions.
Mitch's Blog 