It runs both ways doesn't it? If you were in chemistry or biology at anyone time you used to have to hardly know anything else, on the other hand what you did know was complicated and specialised. You did not benefit from the systemisations that happened at a later time. You could not now learn chemistry or biology without quantum mechanics, which complicates in one way and simplifies in another. It's called interdisciplinarity, and has by now been around for a long time. Maybe if you are in pure physics (less so in applied) you can afford to ignore it, but not if you are in much else.
The term interdisciplinarity reminds me of perhaps the most interdisciplinary conference I have attended, about 20 years ago on molybdenum enzymes. You didn't know molybdenum was involved with enzymes? We will all be wiped out if they stop working. Attendees were expected to follow discourses on the genetic structure and control of the genes (genetics) evolution and bioinformatics, protein structure (crystallography) electron paramagnetic resonance (molecular biophysics) synthesis (organic chemistry) reaction mechanisms ( physical organic chemistry) involving or not molybdenum and protein, let's see now, that would make it bio-inorganic physical organic chemistry wouldn't it? Most of these in anyone talk, will that do? But nobody blinked an eyelid at this, True some elders commented that it was easier for the young researchers who had been trained that way to move around in all this, including in the laboratory. I guess it sounds a bit strenuous if you're not in it, and it is even if you are in it. I guess you have to stay in it otherwise it sounds terrible from the outside. Not that any of these active participant will know everything about everything.