This is what excites me about science - the discovery of the previously unknown and the revision of what we previously thought we knew.
I wish our education system promoted this idea - "what we know about science will change in your life time. It's likely that in the future, most of what you're learning today will be outdated. It doesn't mean what we're teaching you is 'wrong,' but rather, it's the best of what we know now. You're about to enter on a glorious adventure of discovery that will not end at graduation. Science is about hypothesis, iteration, and testing...and the discovery of unanticipated results."
Instead, what's taught is a static version of reality: What we know today is all that is worth knowing for the rest of your life.
I wish our education system promoted this idea - "what we know about science will change in your life time. It's likely that in the future, most of what you're learning today will be outdated. It doesn't mean what we're teaching you is 'wrong,' but rather, it's the best of what we know now. You're about to enter on a glorious adventure of discovery that will not end at graduation. Science is about hypothesis, iteration, and testing...and the discovery of unanticipated results."
Instead, what's taught is a static version of reality: What we know today is all that is worth knowing for the rest of your life.