Considering how messed up Pentagon weapons programs have been, I doubt the US military will ever recover its edge.And while I agree that delaying for the best shot is always a good idea, some times, very rare opportunities come that they shouldn't be missed. Late 2020s, US Military will have big capability gaps against the PLA while also having the "art of the deal" Trump in charge. I think that would be a rare opportunity that Xi could/should push to exploit to make advances on Taiwan