liz: all right, joe lonsdale talking about cryptocurrency. it's a big week in the world of crypto.ies & exchange commission chair gary gensler is set to appear in front of the senate baking committee and that is tomorrow. ahead of it, this is the guy you need to listen to, charlie gasparino. >> the biggest overhaul of ethereum, the second biggest blockchain is over, i think it begins in the next 24 hours. why do we care about this? liz: the merge. >> the american as they're calling it. -- merge. two big digital coins and blockchain. there is the blockchain for bitcoin. there is one for ethereum. that is pretty interesting because they're doing all sorts stuff on the ethereum blockchain. here is how i will break it down because it's a little bit complicated. if you were on bitcoin, previously to this, ethereum blockchain, if you want to create the coin you have to mine them. mining depends how you do it, the way it is traditionally done you figure out mathematical problems. you could theoretically get some more of the digital coin, make more to make money that is the grease that all

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