What if the price really moves?
Then nobody closes the drift. The fee decays to the floor. After 32 blocks the new price becomes the reference.
A real move costs nothing. Only the recoil pays.
Reference price, tight band, free to widen, auctioned to close. It only works for pegged pairs.
RECOIL uses the block-open price as the reference instead of a peg.
Same auction. Any pair.