I don’t really know what the “golden bridge” is exactly but I do know that gold has a pretty low melt temp and maybe there is a fire below it and a lot of people could be about to drown in a molten fire. Kinda like the one in the LOTRs.
Thing with the dates is, something may have happened on the dates that we will not know about for weeks/months/ever. Also with plans this extensive, dates have to be adjusted as things change. So for those reasons I do not live and die by stated dates.
Golden Bridge is an Art of War term for providing your enemies an attractive route of escape, allowing for victory in the current battle without major loss of forces.
Sun Tzu, the famous Chinese General who wrote the classic text about winning wars without fighting, said ‘Build your enemies a golden bridge’. By this he mean you corner them, and then rather than fighting (whence they, having nothing to lose, would fight to the death), you back off a little and let them leave with dignity - just in the direction that you want them to go.
The Golden Bridge Close thus works by closing off all options except the one you want.
events might have intervened with Q and MI plans - DJT can’t afford to have upheaval right before this NK thing - ??