With John and Dan and Anurag today I visited San José's Rosicrucian Egyptian Museum. The way I understand it (please forgive me if my facts are wrong, I don't give a damn) the use of papyrus by the ancient Egyptians was pretty unimportant.
Papyrus helped them keep records. It helped them transfer and advance their knowledge. It gave rise to new forms of expression. But none of that matters. Silly papyrus, it could never give people a better life, they could only get that for and from themselves.
Yesterday (Thursday) or so I nearly fell off a rock formation one hundred or more feet to my death. Well, that's probably a bit melodramatic, I was pretty much in control for the few feet that I was actually sliding down, and I had plenty of stuff to grab onto had I not found what I did. Then getting down was all about caution, patience, sustained focus and tolerance of low-level pain, controlling heart rate and breathing... so basically it was like long-distance running but crazier.