"Which supports my thesis that German technological advances were put into actual "powder-burning" practice... and, looking back, these things, like the Paris gun, the V-2, the V-1, the Heavy Gustav, the proposed New York Bomber, the Goliath tracked mine, etc, etc, etc..."
For every "successful" "wonder weapon" there were perhaps a dozen or more that were absolutely mindless, endless resource sucks that did virtually nothing to enhance German's changes of winning the war and, in fact, hindered its war-winning potential. I put successful in quotes because virtually none of the wonder weapons programs were actually successful.
The Gustav is a perfect example. The damned things required two to four battalions to move them, set them up, fire them and protect them, not to mention the men and resources needed to build specially prepared rail tracks. Getting the gun read to fire could take literally weeks.
Then there was the Nazi "atomic weapons" program. Millions of Reichsmarks spent on a complete and total dead end.
Yes, the Germans did make some interesting technological advances, but as often as not they completely squandered them on ridiculous demands and expectations for them.