>The ledger contains the history of all transactions which can be verified. I'm probably late to the party here... but just how many transactions can be handle

>The ledger contains the history of all transactions which can be verified. I'm probably late to the party here... but just how many transactions can be handled in current ledgers? I mean... let's say everyone on earth suddenly agreed to use some crypto. You suddenly have lets say 4+ billion people (let's ignore kids) doing transactions per day.. can that be anywhere near supported with any current cryptoscheme?