It's funny, I googled VAST and the AI search insisting that it's the same as ADHD, it's just a reframing of it

It sounds similar but almost coming at it from the opposite angle. ADHD is when your brain's baseline is not producing or using dopamine properly. VAST almost sounds like a sort of burnout, where your brain is overwhelmed and cannot process stuff anymore. The symptoms are the same, the effects are the same, but the cause is different.

ADHD root cause is internal lack of stimulation, VAST root cause is external overwhelming stimulation. That's how I understand things anyways