This is not gain at all. At least in theory: You own some tons of gold at the start of the process, you have the same tons of gold at the end of the process. The only real gain is that you have gold in the US custody and the US can be tempted to just use it without telling you anything. In other words, you had "paper gold" or "virtual gold" that the US can confiscate anytime, for example after invading Greenland, bla…
> This is not gain at all. At least in theory: You own some tons of gold at the start of the process, you have the same tons of gold at the end of the process. I see a lot of comments like this but I just can't get my head around what you are trying to prove (or disprove). Every definition of gain (or loss for that matter) implies that the same amount of _something_ is now worth more (or less) than when you bought it…
(I know share rehypothication exists, but it shouldn't)