Comment Re:How long will it take IBM to find it won't work (Score 1) 78
So true. If this takes off, I can see it as a way to achieve microtransactions, but if a few billion people suddenly start using it to send 1p to each other every time they read a newspaper article or whatnot, then I can see that blockchain becoming as large as all the computer storage in the entire world in short order.
It has to be trimmed in order to be practical, and I'm not sure how practical it would be without the blockchain. I wouldn't worry too much about the transaction speed, visa and mastercard happily handle a lot of transactions so this can be handled too (even if they need a better system than the current one).