# planet hopf

- an [[object]] in [[gauge theory]]
  - [[go]] http://www.math.toronto.edu/~drorbn/Gallery/KnottedObjects/PlanetHopf/
  - [[yt]] https://www.youtube.com/watch?v=2xiEEtoa-_4
  - [[push]] [[eric weinstein explains gauge symmetry]]
  - [[eric weinstein]]
    - with [[joe rogan]]
    - [[gauge symmetry]]
    - "[[curvature]] in this context is the [[escherness]] of a [[system]]"
    - [[aharonov bohm effect]]]] 
    - the "weirdness" in [[escherness]] is not actually weird in mathematical fields, and apparently also in [[physics]]: some physical objects seem to behave with escherness
    - the limits of linguistic thinking: there's something about [[gauge theory]] that makes it so that it's much easier/at all possible to understand via visual thinking
    - [[spinners]] are another thing that, when explained with words, just doesn't make sense
      - [[philippine wine dance]]
      - [[joe rogan]] makes the right question at 18:20
    - [[klein gordon]] equation
      - [[paul dirac]] came up with a square equation that produced a spinner; one of the three most important equations in physics

https://twitter.com/O__C___D__/status/1380590675536797697

