This is a really bizarre comment. None of this is any sort of obstacle. Any unspent, in-limbo coins are easily conceived of as being "refundable". Someone who w

This is a really bizarre comment. None of this is any sort of obstacle. Any unspent, in-limbo coins are easily conceived of as being "refundable". Someone who would get confused by the things you mention would also get confused by the concept of a rent deposit, a money-back guarantee, or a corporate stock.