[jkahrs595]

lasers can cut steel, so barcode scanners aren’t entirely benign

[KaiserPro]

Yes, no Reductio ad absurdum.

My point is, phased arrays of ultrasound have the ability to be destructive. In the same way that a single MIMO wifi AP isn't going to cook you, but 10,000 MIMO arrays steering coherently over you will.