I don't either. The author is also missing that CI servers often have much better hardware/networking than the developers laptop. Even if they don't, it's not c

I don't either. The author is also missing that CI servers often have much better hardware/networking than the developers laptop. Even if they don't, it's not crunching away running a CPU and IO intensive test suite on their device for minutes. A good example of this are tests which hit the DB hard, if you are in a different location to the test database servers, the latency between the app server and the db can absolutely murder performance. I can sort of see the problem if you are often seeing CI fails, which require tedius 'fix ci, fix CI 2, fix CI final, fix CI final FINAL' commits taking ages to test and see if it works. But really that's a different problem.