What is it?

I'd tell you all about it, but I'm currently all out of it ;)

Look into Ego Depletion. There's academic disagreement over just how "consumable" willpower is. My assessment of SOTA is:

- ego/willpower is finite/depletable

- Most people have more or less the same amount of it as the average. People with "more willpower" typically are more efficient with it

- non-neurotypicals and those that "don't fit in society" (ADHD, ASD, bipolar, trans, nonbinary, anxiety, OCD) often spend much willpower on "passing"

- it's linked to everything from blood sugar levels, insulin levels, brain blood flow, dopamine levels, D1/D2 activation ratios, and probably gut microbiome