At no time did the Soviets melt away.
From the German perspective, in a broad sense, they were being pushed back very rapidly and surprisingly so as the German general staff did not initially expect as much success as it had.
Thank you, Sphinx, for your well thought out reply.
No problem thanks to you also.
The Germans never stuck to any ridged campaign plan but shifted strategy to meet circumstances.
This is true, I was not suggesting that they did. What I meant was it is still not so simple to shift campaign plans, and that your two changes of pulling back in 1941 and attacking Moscow in 1942 in my opinion are contradictory to the campaign design thinking of the time.
The strength of the German Army was in its flexibility, rapid mobility, and strong unit cohesion. In the mud season the Germans lost the ability for rapid movement. Fighting a slogging match with the Red Army forcing them back on their supply bases was playing into their strengths not their own. Fighting their divisions to the verge of destruction, while advancing in a wide semicircle attempting to encircle Moscow while running out of supplies was setting themselves up for a counteroffensive. It takes no hindsight to see that the German Generals were operating with willful blindness and demonstrating the height of arrogance.
You have precisely just explained why it DOES take hindsight. Blindness and arrogance can't be magically removed; who wouldn't be arrogant with the advance that early Barbarossa achieved? How do you justify more cautious decision-making with such an advance? You cannot just ignore individual personality traits and characteristics in decision-making: thus, it
is hindsight.
Also you ignore their biggest issue: supplies. They dig in, sure, but how are they feeding themselves? Where's the oil? The munitions? The horses? The trucks? The shells? The spare parts? Etc.
the Germans should suffer fewer casualties and inflict heavier loses on the Soviets than in the OTL Moscow counteroffensive.
Should? An impossible assumption to make. Who knows what the many factors of such changes would result in. Plus, some fewer casualties on their side won't make the core problem go away: supply and logistics.
6th Army had no hope of crossing the Volga.
You forget two things:
1. You say that they have no hope of crossing the Volga
with hindsight. German officers of the time had witnessed German forces successfully cross the Dnieper and many other smaller rivers as well, they may have had doubts but they would never consider it to be "no hope."
2. Moscow also sits on a river. A smaller one, yes, but still defensible when there is a large, coordinated, and more organised force.
should've been self-evident to the German high command.
Why should it have been self-evident??? By definition if it was 'self-evident' then they would have seen it right? Obviously it wasn't self-evident otherwise military experts and generals of the time would have seen it better than some random folk of the 21st century. Also consider: you are looking at the war with near God-like omnipotence: you have access to all the dates, all the battles, all outcomes, exact weather, exact terrain, exact force compositions, strength, morale, and perhaps most importantly you have access to the exact thinking of both high commands. Individual German commanders would have shoddy intelligence of even their local areas of responsibility at best while the Staff would certainly have a very very foggy view of the strategic situation, nowhere near your or my level of sheer knowledge.
Haphazard logistics, poor intelligence, lacking any sense of time & distance, disregarding weather & terrain conditions, holding the enemy in contempt, and thinking that their tactical brilliance could overcome the limits of reality.
Exactly! Exactly. You have just explained why your assumptions are only possible with hindsight!
They had poor intelligence, you don't.
They lacked sense of time & distance, you don't.
They disregarded battlespace conditions, you have perfect knowledge of things which to them had not even occurred yet and would be impossible to know.
They held the enemy in contempt, and you can't just handwave away that attitude which you are free from. All of these are inherent truths that will be very difficult to shift.
Oh and you finally mentioned logistics, thank you. Yes, you never addressed how exactly they would fix their endemic supply issues to successfully drive on Moscow.
The two wars were very different.
This is indeed very true, but I would posit that even if Japan could threaten the American heartland they still stood no chance of an overall victory.