I think he might have been referring to the weight ; the old original gold ingo
ts were from 10-30 lbs each. Just 100 of the heavy ones would be 3,000lbs....a lot of weight for an old U Boat with crew ,etc. Multiple trips or multiple subs would be needed,...but it could be done.
My question is why Antarctica...it's inhospitable and far away from travel routes.There are far better places in the world to take and hide gold. South America being one since the Nazis had a connection there. I agree that leaving it in Europe would be a bad risk since at that end the Germans knew they were losing, but before that they might have taken it out of Germany to another location nearby. I suspect that there might still be lost hidden loot in Europe but with all the treasure hunters over the years it is a wonder it hasn't all been found. There might be some in South America also...who knows..?