business need. is it really? no. but go _ business need. is it really? no, but go with _ business need. is it really? no, but go with me. - business need. is it really? no, but go with me. the i business need. is it really? i no, but go with me. the thing thatis no, but go with me. the thing that is currently burning through more electricity than the country of argentina as people use blockchain technology to try to get rich on crypto currency. 50 technology to try to get rich on crypto currency.- on crypto currency. so the blockchain _ on crypto currency. so the blockchain is _ on crypto currency. so the blockchain is a _ on crypto currency. so the blockchain is a way - on crypto currency. so the blockchain is a way of - on crypto currency. so the i blockchain is a way of storing ownership records. it can prove that you own a bitcoin, a house or even a video clip. that proof is a unique token that is non— changeable, non—fungible. it is a non—fungible token. au and nft. it is a non-fungible token. au and nft-_ and nft. personally i have alwa s and nft. personally i have always been _ and nft. personally i have always been sceptical- and nft. personally i havel always been sceptical about whether they are a good idea but there are plenty of people who have bought into them, literally. ownership rights for some digital artworks have gone for billions of dollars and collins public dictionary has made nft its word of the year. and just last week, a new development— a group of people got together and tried to crowdfunded enough money to buy a printed copy of the us constitution at auction. they were out of bed, despite claiming to have raised $40 million, but had they been