[hittaruki]

Such arbitrary limits won't work, especially now. For ex: WhatsApp has about ~50 employes[0]. The kind of wealth and value you can create with few people in software is very dissimilar to other sectors which (at least for now) requires a large number of people involved to be viable.

Another issue is what do you consider as part of a company? In the case of uber, would it include all the drivers or are they there on individual companies?

I guess all this comes down to what you are optimizing for: Quality of life for a median human or overall inequality. I think right now it is optimized for the former.

[0]: https://en.wikipedia.org/wiki/WhatsApp

[iad]

If it would have prevented WhatsApp from being acquired by Facebook, wouldn't that have been it working?

[godelski]

The parent is drawing contrast to other companies. For example, let's say you are an ISP. There's a clear network effect there as well. But obviously 50 people can't dig all the ditches and run all the hubs needed to take advantage of that when your country is the size of the US.