Comment by kiba

Network effect is basically the same thing as urban agglomeration in real life. The value of a city is from all the people aggregating together to provide goods and services and people are worrying about the housing crisis.

So what is the correct solution to all of this? I would be tempted to reach for a land value tax except this doesn't really apply to cyberspace. The only "land" is built by the platform themselves, but at the same time the platform isn't solely responsible for all the value generated on the platform. So, maybe we should tax network effects.