Don, I have something serious to say, which may be out of character for me, but it may make sense: I would love to have my memory like my son's which is almost like a video tape of everything he has done or seen in 22 years of life. BUT, I am 54, and have almost 2 1/2 as much time to have memorized, I believe you can have so much information in a brain, that it becomes a burden. Some things are better to be forgotten, especially if they are not all pleasant, or necessary things to remember. Maybe our brains are just resting a little. Maybe it's natures equivalent to formatting a hard drive in a computer, and cleaning out the un needed duplicated stuff, to make room for new data? Just a theory, but something to think about! P.S. I almost remember how to use a sliderule, and how to send morse code, but I would rather use my brain to understand the newer technology, if I have to make a choice. Ken B