I've been banging the testing drum for so long I'd have a hard time to not violently agree with that article. I have a couple of beefs with it though, like the sacrificing encapsulation point but other than that...

Interesting talk about management and why it's hard. It touches upon problem solving and why we fail at it. In short we often look at symptoms and not problems. To make things worse we often try to solve them at the wrong place out of sheer ignorance.

It's also a very humble talk which I always appreciate.

Where we're reminded that the stacking contexts with CSS is not tied to the DOM tree... Yay for making complicated rules which means you'll create such stacking contexts unexpectedly. This article comes with a couple of nice tricks to make things easier though like the isolation property. The CSS Stacking Context Inspector browser extension is good too.