"Wow, I simply never knew that before"--and now the world looks a little different. What was it?

A brand new piece of information has the power to change our view of things. It sheds light, it shifts perspective, it alters relationships, it broadens horizons.

What has been such an instance for you? And what was its effect? It could be something trivial and fun or something mighty and life-altering, or anything in between.

I’m talking here about information and not attitude or opinion. For the sake of the question, let’s define information as an independently verifiable statement in the form of a fact. This is a question about the experience of gaining new knowledge and not about epistemology.