I was thinking in term of player base size. But now that I think about it more, player base size makes no difference in the context of this conversation.
> Activity Monitor is a tool that was introduced in Mac OS X 10.9.
Activity Monitor was introduced with OS X 10.3 (https://en.wikipedia.org/wiki/Activity_Monitor). And was significantly revamped with OS X 10.9 to receive the various energy related measurements.