[ceslami]

For the sake of discovering a middle ground between our arguments, let's look at an example of a >$1B company running Rails: Github.

Most of Github's stack is Ruby on Rails, with specialized components/sub-systems written in C. This is a common theme amongst companies that use Rails or Python at scale.

There's a reason why people keep those languages around. Its the same reason why they tend to be used for MVPs: the tool gets out of your way so you can focus on solving the hard problems of your domain. The longer you can preserve those ergonomics, the better.

[vacri]

My guess is that Github uses a few more cpus than "a fistful of c4.larges" suggests.