Is It Better to Have Your Database in AWS East?

Having the code at the edge where it all ends up needing to go to east is that actually better than having the code be located next to the database? There's trade offs here, right? Obviously. But most applications are not like that. Most applications are, for example, you have a landing page and that landing page needs to do a B tests. And those A, B tests are based on some heuristic that you can fetch from the database every five seconds. That's fine. Like, it doesn't need to be perfect, right? So you have caching in place, which, like, by doing this caching locally to the user and still being able to programmatically control