You’re either remarkable or invisible,” says Seth Godin in his 2002 bestseller, Purple Cow. - Cal Newport

Put another way, trying to squeeze a little more work out of your evenings might reduce your effectiveness the next day enough that you end up getting less done than if you had instead respected a shutdown.

For many, the core question of “is this the best way to use technology to support this value?” leads them to carefully optimize services that most people fiddle with mindlessly.

To do it right, it is the most complicated thing I know how to make,” Furrer explains. “And it’s that challenge that drives me. I don’t need a sword. But I have to make them.