> That magnetic pulse caused a flash of light (a phosphene) in the receiver’s visual field as a cue to turn the block. Is that brain-to-brain really? It sounds

> That magnetic pulse caused a flash of light (a phosphene) in the receiver’s visual field as a cue to turn the block. Is that brain-to-brain really? It sounds more like ocular nerve stimulation derived from the EEG of the sender and it doesn't seem very far removed from having the sender push a button that turns on a light bulb in front of the receiver.