Earlier quoted context omitted.
> The economic development achieved by the Soviet Union in the first half of its reign was incredible. That's a regurgitation of a great lie. Krusev indicated in his memoire that economic data of Stalin's years was defying kindergarden level arithmetics, was utter garbage, and he gave few convincing examples of that, and here, I would believe him. Union's economy saw few ups, and downs during its existence, and those…
The German army at the gates of Moscow, Stalingrad/Volgagrad, and Lenningrad/St Petersburg found it was no lie. Do not rely on state propaganda, look at the results
The "massive industrial advantage" was nothing not to be expected from the most resource rich country on the planet.
Yet, the country was, by all accounts, from both most staunch communist party sources, and contemporary anticommunists, completely incapable of running during the crisis, and "all in" strategy of manufacturing one gun, one tank, one shell, one plane in massive amounts was a result of desperation, not industrial might.