The dog picture NFT falls into the category of gambling rather than finance. It's a form of gambling on the blockchain where everyone throws their money into a

The dog picture NFT falls into the category of gambling rather than finance. It's a form of gambling on the blockchain where everyone throws their money into a pile for the right to own X% of the pile, and they hope that the size of the cash pile will increase so they can cash out at the optimal time. As with all gambling, the house will always win. The cash pile can lose value without anyone ever cashing out, and the house probably gave themselves a huge percentage before the game started.