It’s about 1.1TB for full sync geth nodes, and growing. Ethereum researchers are looking into statelessness and state expiry which aim to make it even easier to run nodes with little need for space.
People will continue to run nodes regardless of the price of ETH, just like Bitcoin.
ENS is a smart contract protocol, so I don’t see how it’s related.
Most L2s will require users to pay transaction fees in ETH. Some will have fee abstraction where people can pay with tokens, but the rollup themselves will still end up paying ETH on L1.
Ethereum will essentially be a settlement layer for rollups, and everyone will be doing their DeFi, NFTs, etc on the rollups which are almost treated like their own chains.
It’s both. The artist registers an .ETH name and/or puts their wallet address on their profile, and the NFT proves that the artist originally created the smart contract, and/or minted the NFT, and is now owned by the user, shown on the chain.
Both of those are centralized, and will need to compete with zk rollups on Ethereum in the coming year, which will have tokens too, incentivizing people to try it out.
That’s why I’ll rely on the .eth or wallet address listed by the artist on deviantart. NFT buyers buying from scammers aren’t doing their due diligence to check if it’s legit or not; they could simply contact the artists directly to confirm if the listing is real.. I’ve done just that, contacting the artist directly to make sure.
If you ask “well, how do you know that’s their real deviant profile?”, at that point, it’s not a crypto/NFT problem, but an identity problem. My understanding is that keybase.io was one way to do that, but I never used it so I can’t say much. What if a scammer registered the keybase first before the real artist? Not sure what happens in that case.
It’s not that difficult. Artists, original creators will write down their .eth or wallet address on their profile. Or just compare the timestamps of the creation of the smart contracts and the tokens.