Comment: You can hold it..

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In reply to comment: If you don't hold it... (see in situ)

You can hold it..

Just put your wallet on a USB key, CD, or print it out on a piece of paper.

And it's not the same as a pure fiat currency being created out of nothing. Work is being done to produce unique and scarce products. Those products have some inherent value just as gold or diamonds do. Just because the product is digital rather than material is simply the state of the commodity.