Not just for rays that land on the real line. It seems to be a feature of periodic angles. The origin of the flop is a shaky method for selecting which preimage of leg 1 to include as leg n. When this choice flips, it propagates a flop down the list.
The selection of this 'last leg' needs to happen at infinity as well
Not just for rays that land on the real line. It seems to be a feature of periodic angles. The origin of the flop is a shaky method for selecting which preimage of leg 1 to include as leg n. When this choice flips, it propagates a flop down the list.
The selection of this 'last leg' needs to happen at infinity as well