When I read the intro of that article, where the recent developments of brain-machine (BMI) and brain-brain interfaces (BBI) were briefly reviewed, I noticed this sentence:
One example of a BBI between humans detected motor intention with EEG (electro encephalogram) signals recorded from one volunteer and transmitted this information over the internet to the motor cortex region of another volunteer by transcranial magnetic stimulation, which resulted in the direct information transmission from one human brain to another using noninvasive means.
Apparently, they believe that transcranial magnetic stimulation is noninvasive. I think it's tinfoil hat time.
And then, I lost it after reading this:
In a very recent work, a BBI was developed to implement motion control of a cyborg cockroach by combining a human’s SSVEP BMI and electrical nerve stimulation on the cockroach’s antennas. The cyborg cockroach could then be navigated by the human brain to complete walking along an S-shaped track.
Cyborg cockroach
!?! Who needs rats when China could invade us with hordes of cyborg cockroaches.
I'm going to look at the box of aluminum foil in the kitchen to see if it is also made in China, right now. If so, it may already be too late.