That had nothing to do with what we were talking about but i'll entertain it cause I love this is it if you havent been able to tell since november.
By june 23rd, because of the propofol he had technically been awake for 63 straight nights. The only thing that gave him any energy at all was the ephedrine but as you can imagine, even the most strongest stimulant cant give you that much energy when you havent really slept for so long.
Im genuinely amazed he had the energy he did.
You can tell it was the drugs that gave him the energy cause if you look at black or white (seems to be performed at the end of the night) and earth song and thriller the next day (again performed at the end of the night), it completely makes the most sense that the effects of the stimulants had worn off and that was his true energy level.
Edit: sorry, Im assuming you meant the 24th. HN, TDCAU and WBSS are all at the start of the rehearsal on the 23rd (he started around 2 pm if i remember correctly). Im not deleting the above cause its still completely relevant. Those were at the start of the rehearsal when his stimulant meds were at peak effect. Come later in the night when they'd worn off like black or white and on the 24th with thriller and earth song, I doubt that was actually michael saving energy. Im basically completely convinced that was purely the effects of having no real sleep for 64 nights straight. I mean, it literally turned him and would turn anyone insane, give paranoia, psychosis, delusions, extreme lack of coordination and movement. All that lines up pretty well. Plus we know michael did suffer extremely from the paranoia, psychosis, delusions, basically all the mental parts so its extremely likely hed be suffering from the movement and energy stuff too