3 ms·

You know, sometimes it's okay to just say that you don't know.

• photochemsyn 4y ago
  The point of responding to internet questions is to teach yourself something new, not to impress others by flexing your knowledge. Also, one of the best ways to gain new knowledge is to throw something up on the internet and wait for others to explain why you're wrong. I'm rather disappointed in your response, mostly for the latter reason. (I think the perturbation business implies some kind of Feynman diagram, perhaps?)