A different kind of optical illusion...

A different kind of optical illusion...  This one is new to me.  You stare at the video as it plays, then look around the room – and everything you see appears to be warping and bending.  The effect lasted 15 seconds or so for me, and was really interesting to see.  Staring at the video again brings the same effect right back, so it's completely repeatable.  Definitely on the weird side!