Unfortunately a lot of places teach software engineers to build over complexity before they need it. I like to remind people that StackOverflow ran on a couple

Unfortunately a lot of places teach software engineers to build over complexity before they need it. I like to remind people that StackOverflow ran on a couple of IIS servers and a msSQL db for a good while before scaling up to a little more than a couple of IIS servers. Hell they didn’t even do the CDN thing until 2017 or something similarity “crazy”. Mean while you have hordes of developers who write interfaces which will only ever be consumed by a single class because they’ve been taught to do so. As I see it the only way to look at scaling issues is that you’ve made it. Almost no user facing software will ever reach a point where something like Django couldn’t run it perfectly fine. It’s when you do, you build solutions, which sometimes means forking and beating the hell out of Django (Instagram), sometimes going into Java or whatever, spreading out to multiple data bases and so on. Of course once you actually hit the scaling issues you’ll also have enough engineers to actually do it.