(1) student asks prof if they believe their famous 'impossible' experimental result was real. prof says no, the weight of probability lies on the side of spurious signal, but they still believe a real signal will someday be found
(3) famous emeritus prof describes the work that won him the prize as 'tinkering', he just happened to get his machine working before anyone else. mentions he used to drink ln2 as a party trick, offers demonstration. students do not encourage this. he does it anyway, is fine