> Put your entire application on a single server somewhere, and all of its dependencies live in the same box. Optimize the vertical before you rewrite for horiz

> Put your entire application on a single server somewhere, and all of its dependencies live in the same box. Optimize the vertical before you rewrite for horizontal, because 99% of the time you will go bankrupt before you get as big as Netflix so it wont matter anyways. Worse case, you'll get bottlenecked by the DB and move it to a different (bigger) server.