> transaction didn't burn thousands of dollars of electricity to verify it If a transaction does not do this, it can be guaranteed to be insecure. >Faster blo

> transaction didn't burn thousands of dollars of electricity to verify it If a transaction does not do this, it can be guaranteed to be insecure. >Faster block times means she'll get her coffee sooner Maybe. Or maybe the merchant doesn't get paid for coffee at all (because faster blocktime means more orphans)!