A video about some infinitely complicated, fractal knots.

The paper by Ralph Fox is:
"A remarkable simple closed curve", Ann. of Math., (2) 50, 264265.
https://www.jstor.org/stable/1969450

HsinPo Wang (  / symbolone1  ) came up with this awesome animation of undoing the wild slipknot (which is, of course, impossible):
https://www.desmos.com/3d/ng4mkltbi3

Wild knot:
Shapeways http://shpws.me/TL3p
Printables https://www.printables.com/model/8891...

Wild slipknot:
Shapeways http://shpws.me/TL3q
Printables https://www.printables.com/model/8897...

Background music by Quiet Bison:
https://open.spotify.com/artist/5Pmma...
  / quietbison  

The Achilles image is from https://en.wikipedia.org/wiki/Achille...