Text on back:
Dad + Don,
You know that Benford's Law could have a broader application to human learning behavior, right? It's intuitive -- 30% of discovery happening in the very first years, decades, whatever, then tapering off along a logarithmic curve that spans a person's life. Of course, this also presop presupposes that there's a finite amount of knowledge, which Larry'd certainly argue otherwise, but as an admittedly simplistic model it's fairly accurate.
My point being: first discoveries get rarer later in life, but that doesn't mean they stop altogether. I think I'm liking the one I'm having right now.
See you in two weeks,
Charlie