The point is that these days we're supposedly past finding 'large' physical chunks of the body—given a century's worth of diagnostics, x-rays, MRIs, etc.—and on

The point is that these days we're supposedly past finding 'large' physical chunks of the body—given a century's worth of diagnostics, x-rays, MRIs, etc.—and onto much more complicated matters such as how proteins are synthesized in human cells and how gut bacteria affects mental function and the like. This one is a bit like not realizing the wheels are missing off your car. Right, it ought to have been damn obvious ages ago.