This doesn't mean anything. At some point, it's easier to throw resources at your old stack to make it scale instead of migrating to something else. Example:

This doesn't mean anything. At some point, it's easier to throw resources at your old stack to make it scale instead of migrating to something else. Example: Facebook and PHP. They decided it was easier to write an entirely new runtime instead of migrating to something else. Often, this results in significant improvements (MySQL and PHP are great examples).