[worik]

> In this day and age, it is almost impossible for certain businesses not to build on someone's else kingdom.

No it is not

It is often difficult and expensive, relative to letting Facebook (or the like) do the hosting.

But VPSs are a thing, you can run almost any software on them.

Stretching the analogy: Build your castle on your own bedrock, and build "forts", or "outposts", on the enemy territory

Ignoring Facebook et. el. is stupid, but depending on them is fool hardy

[dgrin91]

Thats not what other people's kingdoms means. Basically all non-trivial apps are already built on VPSs. The other people's kingdoms refers to how people interact with your app. Take Zynga - they were not literally running on FB servers, I'm sure they had their own VPS, but their games just had 0 reach outside of FB. When FB decided to change things Zynga just got fucked, VPS or not.