Further, the tools we use should not interrupt our work. If pens were like most software, they’d run out of ink or overflow on a daily basis. Your ergonomic chair would randomly change your lumbar support setting. You’d be convinced that the makers of the awful pen and the awful chair went to more effort just to make these things frustrating to use. One day, rotating the lumbar knob clockwise would do one thing, then the next day, the knob would just be gone, and the manufacturer would have a blog post boasting an “innovative new interface” that “assumes the best setting for you”. Better, you’d have to dismiss the announcement before you could even sit down.