[Johnwbh]

Interesting essay. Reminds me of some of the issues that come up in teaching. Even when you think you have explained something at the simplest possible level you are often missing background assumptions that seem to obvious to you that you can't even conceive of not knowing them

[andrewem]

I’ve read that essay before and I re-read it just now and I still don’t understand what is meant by “avatars walking around on top of our company home page”. So I guess the essay proved its point.