To this and the other responses to me; The Germans had jet fighters.
That would fit into the superior high speed aerodynamics field. Nonetheless, the Allies had vastly superior
engines that didn't burn out after 10 hours, making the Meteor at least equal as an actual weapons system. And the P-80 which didn't quite make it to combat and the British Vampire shortly after were the first to have engines in the fuselage and thus have greatly superior roll and turn rate, and also where greatly superior Allied engines overpowered German aerodynamics even in straight flight.
they had night fighters guided by radar
And German nightfighters were both greatly inferior in performance (compared with say, the Mosquito), and had greatly inferior radar, requiring big aerials that degraded performance further.
They had
heavier tanks, that were grossly underpowered, fuel hogs, and unreliable. Not to mention too expensive to mass produce leading Panzer Divisions to continue relying on the medium Pz IV during the entire war. The Pz IV which was notably inferior to either the Sherman or the T-34.
they had the best conventional air fighters
Flat out false, as Allied fighters generally had equal performance but vastly greater range and reliability.
they had cruise missiles, ballistic missiles
Both practically worthless...
they had optically guided bombs
Yes, primitive and easily jammed MCLOS weapons, compared to the Allies, who were able to mass produce TV-guided bombs, and the BAT radar guided glide bomb.
they had very good infantry weapons
The army that had to rely on the ancient K98 as its primary rifle compared with the Americans who issued everyone and their mother a semi-auto Garand or the superb M1 carbine?
they were working on fission weapons
And getting nowhere due to getting the basic math wrong. Compared to the Allies who actually
produced fission weapons....
They lost because they were out numbered and out smarted strategically.
They lost because they picked a fight with enemies who had
more of everything. Everything including scientists, engineers, companies specializing in electronics, chemistry, etc.
Look at the NACA laminar flow wing for instance. German scientists could never have done the calculations since there weren't enough of them with good enough equipment. Had they done the calculations, they still would have found it impossible to mass produce without American production tech and mass resources. So the Americans were able to put high efficiency wings on the P-51 allowing it to escort bombers all the way to Berlin, while the Germans could not because the Americans had more of
everything.