Draft BIP to make bitcoin quantum secure

Good to see a proposal. Anyone out here that can provide this author feedback is appreciated.

He recognizes variants of shor are coming. Our timelines to act are becoming shorter as algos improve and quantum scales.

"A variant of Shor's algorithm is believed to be capable of deriving the private key from a public key exponentially faster than classical means. The application of this variant of Shor's algorithm is herein referred to as quantum key decryption. Note that doubling the public key length, such as with a hypothetical secp512k1 curve, would only make deriving the private key twice as hard"