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It's true that NFT market is not that much grown as much as expected. But I think it has a promising future, because the metaverse you are talking about, I think the use of NFTs will increase within this metaverse. So I think it will not right to ignore so much from this NFT.
NFTs and Metaverse is totally different thing . So I don't find any logic that NFTs will improve with the improvement of metaverse . But since exchanges like Binance, ftx are offering nft trading like another crypto token/coins. If nft trading level increases in future then nft value may increase . But there is no logic to increase the use of nft with the increase in use of metaverse