Imagine a piece of gold. If you buy it you can also only hope someone else will buy it again from you. Otherwise there is no value in it. Yes you can look at it, but you can also look at the numbers in your bitcoin wallet. Also you can fabricate something from the pice of gold, but 99.9% of the owners of gold will never do it. So is gold also a scam sceme? Or you tell me if at some point there are no buyers for gold anymore, everyone can just start to produce microcontrolers in their garage from it?