Hitler didn't seem to think he was going to lose until the very end. Germany had rockets, jets, heavy water & a team working on the atomic bomb. The Japanese also had an atomic bomb team. Despite all the mistakes he made, the tools for victory were there. If he would have thought to use the jets as fighters instead of recognizance planes, it might have been a game changer. If the Germans & Japanese trusted each other enough to collaborate on the atomic bomb, they may have gotten it first, a real big game changer.
Even if he thought they were going to lose, he was so closely watched that if he was discovered to have an exit strategy, the government might have begun to unravel.
The above being said if half of this is true, you don't live to be 128.
https://en.wikipedia.org/wiki/Adolf_Hitler%27s_health
