It definitely can penetrate the skull, and transcranial focused ultrasound has been around for a few years now with plenty of studies.
So that development isn't new; what's new is to use it broadly for imaging instead of for highly targeted stimulation.
Not to the level of clarity and detail presented here, which is not possible from a basic acoustics physics premise. The “technical blog” is marketing fluff.
that's why I said: "what's new is to use it broadly for imaging"
That’s the made up part though.
right, that may indeed be so