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Cake day: July 7th, 2023

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  • It’s a map of the surface of one part of the brain. Imagine a Star Trek scanning beam going across your head from right to left, about where your ears are. This is a picture of half of that part of the brain (the other part is a left/right mirror image of this picture).

    So the cells along the surface of the brain here are connected to the sensory nerves in your body and this is a map showing which body parts are where. So if you move to the top of the brain it is the area where you feel sensation from your abdomen. Go further down the side and you get to arms and then hands, then face. Notice that sensitive areas of your body are much bigger (hands, face) because a lot more brain tissue is devoted to those areas.















  • I don’t think that’s true at all.

    I realize the geometry predicts some optimal spot for viewing the curve but that just is a mathematical ideal not a real world necessity. If it was then everyone who has ever watched a flat screen would be like “omg I feel like I’m too close because I’m not watching from infinity.” I have a 35” monitor with 1800R and it is very pleasant in a normal desktop setting. I looked into 1000R screens since I like to sit fairly close and the curve felt so extreme that it was a major distraction no matter which distance I sat at.

    I guess I’m saying that the curvature is very much a personal preference thing and if people can tolerate a flat screen they can also tolerate a curve that isn’t meeting some mathematical ideal.




  • People do understand this is a medical device. What you seem to not be getting in this situation is that Elon Musk is an absolutely horrible human who has a long track record of badness. There are plenty of reasons to be pessimistic that this project will end badly for people who aren’t him.

    Awhile back it was discovered that Tesla had quietly programmed Autopilot to disengage if it detected a crash was eminent. Why? Because they were asked to report how many crashes occurred while autopilot was active. Their solution was to game the system rather than actively try to solve any potential problems and be honest / critical of what they had built. This is a system that already has the potential to get people killed. Do you suppose that sort of unscrupulous decision making is going to stop when his people are implanting devices in human brains?