The forest of neurotechnology startups is tangly and sinister. Tangly for the sake of most brain-computer interface technology not being remotely ready for consumer applications; sinister because VC firms keep throwing money at it anyway.
Halo Neuroscience is the most recent group to garner a healthy investment. The fruit they're pitching? A headband to improve cognitive function. I think the investors could use one or two of 'em.
The technology stimulates brain functions that potentially lead to effects like accelerated learning or improved body movement control. Other than current technology that is only able to read brain waves, Halo’s headband can write on the brain waves and for example force the user to focus on a certain task.