That proposal was meant to be taken as a joke. The other proposals by djb and Lange (or possibly CSIDH -- the closest proposal to a usable post-quantum Diffie-H

That proposal was meant to be taken as a joke. The other proposals by djb and Lange (or possibly CSIDH -- the closest proposal to a usable post-quantum Diffie-Hellman -- which didn't make the submission deadline) seem far more reasonable.