TSI editor’s note: We rarely post articles from CNN, but a broken clock is still right twice a day as they say. In CNN’s case, that might be too generous, but they did post an article on a numismatic silver coin which sold in 2013 for an unbelievable price. The coin is now being appraised at 20 million. This made me think about the advantages of sound money over the digital currency system. The fact is, you can’t have a numismatic bitcoin.