The point is to measure the system's efficiency and energy usage. Bitcoin's Proof of Work algorithm using SHA-256 and power hungry ASICs with a bottle neck on

The point is to measure the system's efficiency and energy usage. Bitcoin's Proof of Work algorithm using SHA-256 and power hungry ASICs with a bottle neck on 4-7 transactions per second (average, as latency is in 10 minute intervals) or even in the case of the controversial Bitcoin-Cash with 56 transactions per second; what Bitcoin as a service does with the type of infrastructure required for the software to run can be analyzed and defined in terms of cost of operations versus alternative services which offer similar or identical functionality.