Love this film, watched it again last night, but ...
... here's my thing. I see all the questions asked here (some dumb, some not) and pretty much, they're all now answered to my satisfaction. I understand the basic concepts of the omega, alphas, time resetting, the number of times Cage goes back and learns over and over, how he finally figures out the Paris thing, how he re-gains the time-shift thing at the end, etc. etc.
So here's my got'cha: If gets kicked awake every morning, goes off and gets trained with Rita every day, you would imagine that he would get sharper and buffer and that's JUST what happens. He becomes a real soldier, best of the best. Every day they push a little farther gets further along in the missions, to the farm house, finally reaching the German dam site, etc.
But if he wakes up every day with yesterday's body, his muscles aren't any better than day one. He can't *really* get stronger, as in building muscles mass. And can he really build up the kind of muscle-memory dexterity that gives him such a super soldier reflexes? I don't think so.
His mind can remember everything, he gets to know all the weapons well beyond figuring out how to turn off the safeties, starts asking for extra ammo and batteries, etc. He can also 'learn' about the alien movements in Rita's training with those machines. But how can his muscle-memory endure day after day when he wakes up each morning with the old original poof's body?
That's the one thing that seems unlikely to me. That daily routine would have to be MIND + MUSCLE training together, with no resetting.
Yeah, I know, complaining about little stuff in a futuristic sci-fi ...
Be sure to proof your posts to see if you any words out