I agree I would have loved more of a hard / concrete definition oriented approach to the whole piece but everything they were saying really resonated at least in terms of my personal experience. I haven't ever come across a writer focusing on this. It was really unexpected / refreshing. It's already is reshaping little moments in my day like hugging my son just now. Very unexpected transcendental value for an HN skim while ignoring a boring zoom standup. The truth is out there.
Personal computing and the growth of the internet are an example of something looping. They reinforce and amplify each other's impact and value.
What it means is understood by looking at its converse - panic attack. Wherein, anxiety stirs some negative thoughts which stirs even more anxiety which stirs more negativity and so on until the system seizes - or that has been my understanding of it.
Here, positivity feeds joy which feeds more positivity etc..