The useless part was “....delivery via fedex” because of high cost, unreliability etc. The diaper in itself was and is used by hundreds of millions of people all over the world day in and day out. In fact once even the “delivery” part is very useful at a certain price point.

I’m struggling to connect NFT as a solution for addressing a need in a similar way. Is it something niche like a high end art that earns a few million ultra rich people the bragging rights?