[ArtTimeInvestor]

Are there any signs that the NFT market is real?

I mean - yes, we can see coins moved around on blockchains. But how do we know that those coins aren't just moving from one pocket to another of the same person?

Any ideas on how to look at the NFT market and estimate its size would be very appreciated.

I throw in one idea in myself: The Alexa rank of the NFT marketplaces. opensea.io is at #407 which is higher than coinbase.com which is at #798. So this might be an indication that there really is something happening here.