The p-value of a physics experiment isn't the probability of the result coming from thin air but rather than the probability of a result as or more extreme unde

The p-value of a physics experiment isn't the probability of the result coming from thin air but rather than the probability of a result as or more extreme under the assumption of the null hypothesis (i.e. the effect we are looking for doesn't exist). The rub is that the design of the experiment and thus the hypothesis test is all dependent on various subjective factors, especially the people designing the experiment themselves. I'm not statistician however so presumably I'm just as wrong