Measurement

One of these days, I'm going to take a ruler, lay it on the table, place my arm next to it, and draw little marks for every inch. Why am I doing this? I have absolutely no concept of distance. Over the past few days, I've tried 'eyeballing' distances and the reaction I get is just...incredulous that I'll look at a 10 foot gap and declare it to be "oh, about six feet." And I'm being serious. It's like I have no spacial concept. I've never been good at judging distances - I guess that's why I'm so popular with the boys.