It's also not unique to AI. One person with a tractor can outharvest the amount of corn it used to take a whole village to harvest. This feels just like a dressed up luddite complaint.

Dunbar’s Number is most commonly set at around 150, not 5.

Dunbar is also talking about his layers of emotional closeness, where 5 is the innermost layer.

The "innermost layer" isn't the only place where people make "meaningful bonds" however.

Well, in my example of a company being reduced from 400 to 200, you can still fill out a couple of more layers ;) – I think you are good in that company with meaningful bonds.

On a team that was 12, but is now 6, the odds you find people you relate to is effectively halved. It’s rare entire workforces interact often enough to bond in the first place.

This is such an engineer's perspective. The point is, it is not just the number of connections, but the type of connection: diversity will be removed, since you only really need certain skillsets. The people with design skills and other types of skills will be removed.

This numerical accounting perspective so widespread with engineers and computer scientists is the sort of reasoning that is bringing us to disaster.