node created 2013/07/30
That one new feature you added? That sparkly, Techcrunchable, awesome feature? What did it cost your user? If the result of your work consumes someone’s cognitive resources, they can’t use those resources for other things that truly, deeply matter. This is NOT about consuming their time and attention while they're using your app. This is about draining their ability for logical thinking, problem-solving, and willpower after the clicking/swiping/gesturing is done.

[..]

But even if we can justify consuming our user's cognitive resources while they're using our product, what about our marketing? Can we honestly believe that our "content marketing" is a good use of their resources? "Yes, because it adds value." we tell ourselves. But what does that even mean? Can we honestly say that "engaging with our brand" is a healthy, ethical use of their scarce, precious, limited cognitive resources? "Yes, because our content is useful."

And that's all awesome and fabulous and social and 3.0ish except for one, small, inconvenient fact: zero sum. What you consume here, you take from there. Not just their attention, not just their time, but their ability to be the person they are when they are at their best. When they have ample cognitive resources. When they can think, solve-problems, and exercise self-control. When they can create, make connections, and stay focused.