I'm not to keen on the article. I'm a 2 year frequent meditator who has been studying Tibetan buddhism and learning from monks. This doesn't mean I'm correct, it's just some background. I also have Adhd.

I don't feel he exaplains himself well in the article and just states what he claims are facts. 'It's a state free of greed, hatred delusion' etc etc. Some of these are emotions and I certainly can concentrate well when feeling strong emotions.

'Can only max out concerntration for a short time'. (not direct quote)

I'd question this because of flow where an individual can loose themselves for hours on end on one thing. And what about Adhd hyperfocus? The inability to switch task and move on. That takes power.

Sure, mindfulness and concentration are different. I've found my concentration had become much better since engaging in mindfulness. But for me personally, concentration isn't willpower in all tasks. Some it is, some it takes willpower to move myself away, sometimes it's linked to my ability to let go of distraction (I prefer the word attraction).