> When I got my first glasses in, I was shocked to see that trees across the street were much more detailed than I realized. :) This was one of the most illumi

> When I got my first glasses in, I was shocked to see that trees across the street were much more detailed than I realized. :) This was one of the most illuminating bits to come from getting glasses, because it pointed out a serious bias: we project our sensory abilities onto the people we interact with. In other words, I assumed everyone else could see about as well as I could see, so if I couldn't make out some gesture from X distance, i felt safe assuming for example that I could do that gesture at X+1 distance and not be seen. The idea that other people could perceive my actions with more clarity than I could perceive theirs was a real shake-up. It invalidated all kinds of assumptions I had made over the years. Every time you think you're being slick, or don't recognize a friend at a distance -- that could be one sided. It made a lasting change on how I think about the world.