In typical HN commenter smugness. It took me less than that to realise it was bullshit. It didn’t make things clear, it made them more abstract and more resistive to change. Similarly with DDD. Just build what you need and deal with the consequences of inevitable change later. No one cares if you miraculously perfectly modelled your “definitely the final form” of your domain from day 0.
Oh and TDD?! Ah yes those perfectly defined unit cases you write for implementation details. The best comment I read recently (sorry I can’t find it) something akin to “The first unit I write is to validate the intended side effects through properly exercising associated mocks”
As with everything there is no “best way” to do something, but in software engineering… there are far more bad “best ways” than best “best ways”