Sheldon: Uh, Dr. Campbell and Pemberton, settle a bet for Dr. Fowler and me? We were just discussing, under what conditions the radiative corrections to super-asymmetry could cause time variation of alpha E.M.?
Amy: I say active galactic nuclei at cosmological distances show a part per million deviation. Dr. Cooper says this has been disproven recently with quasar observations.
Sheldon: What do you think?
Dr. Campbell: I agree with you.
Sheldon: Good answer.