[txcwpalpha]

Why is it anyone's "problem"? Nobody said they're being forced to do it this way - just that they are. And I guarantee that there are thousands of other companies out there that have an API-fanout model as well, and might be interested in how Amazon does it.

I don't get the hostility around this article. Nobody is forcing you to read it or to do it this way. If your system is architected in a different way where you can run your whole system on a single instance, then good for you! But Amazon presumably doesn't have that luxury, and others may not either.