I'm not sure what correspondence neuron count has to those, but two other things looks like they would have at least the impact of neuron count, and there are synapse and axon performance and arrangement. Synapses I guess correspond roughly to memory, and axon's are the wires. To give a feel for the importance of these, the final maturation of the human brain that happens at age 20..25, turns a teenage brain into a adult brain, is apparently re-wiring those axon's and synapses.
They don't measure either, probably because no one knows how. But that means their comparison is pretty limited.
- online is way less intense, people assume disconnected chats, and transient random strangers coming on and off. face to face less so, if you speak to someone you don't quit all of a sudden for instance, you have to communicate more.
- physical proximity matters a lot, you don't let people you don't like close, safety reflex ? some form of subconscious emotional match ? still, if you let someone close to you in the real world it's a lot more impacting (IMO) than even the closest people you get online.
- I also feel that in real life you're naturally more social, you don't approach strangers like on a comment thread, trying to debate intense polemics out of the blue. It can happen in the street or at a bar, but most of the time people try to find nice stuff to bond around. digital makes some slightly egotistic part of us shine stronger.
What I found astonishing is starting playing VR ping pong against other players. Suddenly, youre no longer alone in a place, you see gestures of hand and head movement and know the other person sees yours. There is a sudden feel of presence, and the behaviour shifts. Everyone is friendly (even muted players make friendly gestures) and one can have good conversations. Really interesting and pleasant experience, which I can highly recommend, especially for the home office.
That said I can imagine how having a more real time feeling of someone else even virtually can suddenly change your feelings toward the moment.