The Fall of Jerusalem is either 100% or 98% of the content of Matt 24/ Mk 13 / Lk 21. I lean toward 100% as when Luke who writes for a Gentile audience reinterprets what is going on such as ‘when you see Jerusalem surrounded by armies’ for ‘the abomination that causes desolation’. The descriptions are geo-specific: flee to Judea; they are seasonal: not in winter; they are Jewish: not on the Sabbath. The assault on Jerusalem was horrendous with cannibalism, false Messiahs rose up etc.
9) It marks the end of the Jewish era – 40 years after the cross. The length of a generation that could respond or die in the wilderness. After that there is an increasing focus on the ends of the earth.
10) The sign of the coming of the Son of Man which appears in those passages is also on the lips of Jesus to the High Priest. This is not the Coming as in Second Coming – it is from Daniel 7, where one comes like a son of Man to the Ancient of Days in the heavens to be vindicated and to receive vindication on behalf of the people who are being oppressed by the beasts. Further Jesus here calls it is the sign of his coming – not his coming. The sign of his vindication is in AD70 so clear: the words of the Messiah have to come to pass – ‘these things will come to pass in this generation’.