Hacker News Reader

It doesn't work until it does.

The same thing has been said about robotics, AI, space travel, etc. etc.

I'm not saying this is the way, and I have significant questions of understanding thought based on reading brain activity, but I wouldn't put down the entire ultrasound field.

View on HN

It doesn't work unless it does.

Until implies we're just waiting. Unless implies actual evidence, and - in medical procedures - some guarantee of safety.

SF6 plus ultrasound is used to open the blood brain barrier. So if you're pumping a lot of ultrasound into a brain and using a lot of SF6, there are already risks.

Reply on news.ycombinator.com