For the sake of experiment, I left a map running overnight to see how powerful Totems can become in "normal" gameplay.
With the game clock at 51h or so, the Totems seem to have maxed at 100X, or 30 Aether per second.
This is enough for one Totem to continuously power three Singularities indefinitely. (I sank the seven figures of accumulated Aether into one, which will last more than sixty hours).
I wonder what effect it would have had on gameplay if V had used a % instead of an X as the indicator of efficiency level.
Side note: It is curious that I use "a %" and "an X".