Vinson·Li

Index

On hardware

  1. 200 seconds vs. 10,000 years

    Google claims quantum supremacy with a 53-qubit chip. What the chip actually computed, why IBM disputes the number, and why there's still no workload.

    2 min
  2. Face ID: the 3D face is finally consumer hardware

    The iPhone X projects 30,000 infrared dots onto your face to unlock the phone. Four years ago I was faking this in software from a single selfie.

    2 min
  3. Neuralink and the bandwidth argument

    Elon Musk's new company wants a high-bandwidth link between brains and computers. The argument is about output speed. I think it's partly right, and too optimistic on timing.

    2 min
  4. Google built its own chip for neural nets

    The Tensor Processing Unit has been running in Google's data centers for a year. When a company designs custom silicon for a workload, the workload is here to stay.

    2 min
  5. The screen finally feels how hard you press

    3D Touch on the iPhone 6s, one year after I guessed pressure-sensitive phones were a couple of years away. How it measures force, and what it's for.

    2 min
  6. HoloLens maps your room before it draws on it

    Microsoft's headset is mostly a sensing problem with a display attached. Why AR needs a model of the space before it can put anything in it.

    2 min
  7. What a light field actually is

    Magic Leap raised $542 million without showing anyone a product. A look at the optics they're promising, and why it's so hard to wear on your head.

    2 min
  8. The watch taps your wrist, and touch becomes a channel

    The part of the Apple Watch announcement I keep thinking about is a small mass on a spring, and what it says about how little computers use touch.

    3 min