A 51/49 electoral mistake can be corrected 4 years later, but a 51/49 squeaker for YES in a referendum for separation cannot be.
(Almost as bad, a 51/49 referendum squeaker for NO can keep being challenged year in and year out, destabilizing the country, until the YES squeaks through. Just keep doubling your bets.)
I’d vote for a 2/3 threshold…
