like many things in science and engineering, (and life in general) it comes down to this: what is signal, what is noise? most of the time there is no a priori

like many things in science and engineering, (and life in general) it comes down to this: what is signal, what is noise? most of the time there is no a priori way of determining this you come to the problem with your own assumptions (or you inherit them) and that guides you (or misguides you)