You are right. I actually like that approach as well, but that system had at least two major drawbacks: - being pushed like a marketing thingy for a specific c

You are right. I actually like that approach as well, but that system had at least two major drawbacks: - being pushed like a marketing thingy for a specific company - not resembling hours/minutes I guess the latter point was crucial for it not being adapted. Or it was also too early (early internet time)