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Brain-computer interface easily slips in and out of ear canal
(medicalxpress.com)
This is a most excellent place for technology news and articles.
I'm not trying to be pedantic cause I'd actually kinda love to be wrong here, do you think you could find your source for that art thing? I'd love to read more about it, my understanding was that progress in this field was slow compared to the scales we're talking about here
On the games, they're on the market now and being sold: https://www.scientificamerican.com/article/pogue-6-electronic-devices-you-can-control-with-your-thoughts/
On the art, a puff piece with solid studies behind it (sorry wrong, it was 3 years ago): https://www.psychologytoday.com/us/blog/the-future-brain/202009/new-brain-computer-interface-transforms-thoughts-images