[bjourne]

But for neurosurgery the head is held in place and the gamma knife does not need to be hidden. Presumably, the microwave transmitters of a conjectured gamma knife would need to be portable and able to operate without even being in the same room as the target's head.

[ruined]

Microwaves have much lower energy than gamma radiation, and brain damage requires much cruder fidelity than brain surgery.

The experience described by targets seems to indicate room-scale effects.

[bjourne]

We're still taking about imagined devices pinpointing targets' brains from large distances and through walls. I find it hard to believe that these devices would be that accurate and never miss and, say, accidentally hit someone's eyes or neck and cause obvious tissue damage.