Tried to do too much Friday, which messed up Saturday's
plan. Productive day yesterday, but didn't fall asleep
until 4:30 this morning, four hours before the guys with
jackhammers leaned on my doorbell to get me to move my car.
(They didn't turn on the jackhammers until 9:00. And I
think they're just finishing up now.) I've gotten a wee
bit done since, but mostly sort of blink my eyes a lot and
think, "wow, I really need more sleep."
Perrine says I'm the meanest cat-caretaker ever, because
I wouldn't open the screen door to let her try to catch the
cardinals in the tree out back. The female came closer to
taunt Perrine again, after she saw her crouched behind the
screen. Cardinals are kinda loud, aren't they?
Was thinking yesterday about different kinds of damage,
kinds that can be repaired and ones that require replacement.
Was thinking of this because of yet another everyday injury
to my largest organ, and how a little bit can heal but the
rest has to be replaced. (Fortunately, self-replacement is
an inherent feature of that organ, as older bits are being
constantly discarded whether they're damaged or not. So
getting the damaged area replaced is just a matter of
waiting.) Got to thinking about self-healing materials for
stuff like outer skins of automobiles, and what would be
involved in mimicing the biological processes we take for
granted in biological contexts. Ideally any replacement
material would be something that could be synthesized from
whatever the car used a fuel, so you'd only have to 'feed' it
one kind of juice.
Then again, maybe not such a hot approach. If cars
shed flakes of carbon-based 'paint' they were constantly
growing, that'd be one more form of pollution. Hmm.
Still perhaps an interesting enough engineering problem
to solve well enough to describe in a science fiction
tale, even if not really worth implementing that way in
real life.