I understand the decentralized nature of the blockchain, but couldnt I mint the same painting on multiple blockchains? I'm not an expert, but I can see the val

I understand the decentralized nature of the blockchain, but couldnt I mint the same painting on multiple blockchains? I'm not an expert, but I can see the value on cryptocurrencies and ETH and all the smart contract tech. But I can't see the same value on NFTs, as more than speculation.