It's one thing to put those into the blockchain and it's a completely different challenge to have a software infrastructure which incorporates the tech end2end. Example - someone put a random image of someelse else's ticket into the blockchain. The ticket checker needs to have a checker app on his phone which can verify this in real time. It's trivial using centralized DBs.
No one has ever denied the math wasn't cool. It's just that the usecase (NFTs) were terrible. I guess the hype has now died down so we might see some actual uses, like land ownership information.
It's one thing to put those into the blockchain and it's a completely different challenge to have a software infrastructure which incorporates the tech end2end. Example - someone put a random image of someelse else's ticket into the blockchain. The ticket checker needs to have a checker app on his phone which can verify this in real time. It's trivial using centralized DBs.
Hopefully we'll get there one day.