Thread

1. phailhaus · 1790353389 · focus · HN ↗

   > Holography implies that you can do that — reconstruct every fold, vessel, and neuron in three dimensions — without actually looking inside. Simply photographing the surface of the brain somehow suffices.

   Gah I am not a fan of pop-sci simplifications like this for the sake of a soundbite. The author goes onto explain how no, a picture is not enough, you need to actually measure the distortion of spacetime at the surface. Somebody is going to walk away thinking this stuff is possible, that maybe psychics really can detect something wrong with them.

   1. mrec · 1790361955 · focus · HN ↗

      This was the low point for me:

      > Consider a video game sun passing behind a video game tree. The sun pixels touch the tree pixels directly, yet the tree does not burst into flames. This is because the sun pixels are independent of the tree pixels.

      With apologies to Babbage, I am not able rightly to apprehend the kind of confusion of ideas that could provoke such an explanation.

      1. djtriptych · 1790362417 · focus · HN ↗

         lol yikes. Some of the other illustrations quoted seemed OK esp if you already have a layman's understanding of the major concepts... but this just seems.... bad.

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