TD: :--time constraint inherent in the concept, --One of the constraints are doctrinal, because you can not come out of something (the GT) that does not exist (yet). It was easier earlier, for, according to wt writers then, the great tribulation started with the Great War, their pet 1914, stopped in 1918, to allow the GC to come out of the GT and it would start up again--at Armageddon . Doctrinal: only faithful baptized jws will come out the GT, Millions of them from born before 1918 alone (according to " The world has ended, millions now living will never die---" talk. so: where are the millions of super centenarians that are JWs now- or will be when Armageddon is supposed to start?
Fishermen are notorious for bragging about the one that got away! This one got away from wt a long time ago.