He was savaged on social media and Fox News (below) made him a laughingstock. But I think Salvatore Garau’s mistake is that he issued a certificate of authenticity. If he had added a name and a story and a photo of the location of “the empty space” to the blockchain, he could have sold a non-fungible token (NFT) and watched all the visionary tech millionaires bid it up to $69.3M – Indy