exchemist
Valued Senior Member
Oh yes I can believe that. To tell you the truth, there are things I thought I understood about QM and statistical TD that I only really understood when I had to explain them simply on internet forums, even though I can't recall all the maths now and need to look it up. That's one of the thing that - occasionally -makes taking part in these discussions rewarding.I had a professor who told us that the first time he studied thermodynamics, as an undergrad, he didn't understand it; the second time he studied it, as a grad student, he thought he understood it; then later, when he had to teach it, he realized that he didn't understand it as well as he thought he did.