> Expensive watches are supply limited

Exactly like NFTs. Not defending NTFt's just pointing out your argument isn't making much sense as presented.

The thing that is attached to NFTs is generally not supply limited though (in the sense that is much easier to create a digital thing, whether that is game item, art or some kind of record than a watch).

I can create some trillions digital bits, then mint trillions NFTs for each of them.

Can't you sign a lot of time the same hash? Just use another initialization vector, salt, hashing algorithm, and you get a new nft.

One of the key aspect of blockchains is the fact that they're - by construction - timestamped.

But who cares? I mean outside of crypto enthousiast folks.