https://www.youtube.com/watch?v=qQhUxd82Rr0
in veritassiums new video they discuss ultra sound treatment to open up specific parts of the brain/blood barrier to introduce engineered viruses into the hypocampus that will produce receptors that activate thru specific drugs to shut down parts of the brain at will
u gain pretty much control of the ability to form memorys and could be able to mitigate or manufacture addiction
the implications and possible usecases are a dream for mkultra related stuff as far as i could tell
http://shapirolab.caltech.edu/