TMS is unknown in its effect. So it is not really known if it is invasive or not. Acoustic imaging, microwaves all have an effect. What that may be is considered to be an acceptable risk. The risk benefit is up to you.

So far the claims are going beyond the truth. Especially for accelerated learning. Be skeptical.

Jeez I sound like Steve.

The electric tele-interface is an evolving DARPA like project
I think the organic exploration has more to teach us.