A Fermi estimate is a quick-and-dirty solution to an arbitrary scientific or engineering analysis problem. Fermi estimation uses widely known numbers, readily observable phenomenology, basic physics equations, and a bunch of approximation techniques to arrive at rough answers that tend to be correct within an order of magnitude or so. The term is named for Enrico Fermi, who was famously good at this sort of thing.
…It struck me that there is counterpart to this kind of thinking on the synthesis side, where you use similar techniques to arrive at a very rough design for a complex engineered artifact. I call such a design approach Dyson design, after the physicist Freeman Dyson, who was one of the best practitioners of it (not to be confused with inventor James Dyson, whose designs, ironically, are not Dyson designs).
The details are fascinating, but the central argument — that the birth of modernity can be traced to a meta-crisis spawned by the 0.1s problem — is worth understanding and appreciating whether or not you’re a time nerd like me.
There is no convenient leitmotif, comparable to the 0.1s problem, for our contemporary version of the rhyming conditions, but something very similar to the “tenth of a second crisis” is going on today. I suspect our Great Weirding too involves some sort of limiting factor on human cognition that we haven’t yet properly wrapped our minds around. It isn’t reaction time, but something analogous.
I once read a good definition of aptitude. Aptitude is how long it takes you to learn something. The idea is that everybody can learn anything, but if it takes you 200 years, you essentially have no aptitude for it. Useful aptitudes are in the <10 years range.
The American lawn uses more resources than any other agricultural industry in the world. The American lawn could feed continents if people had more social responsibility.
Why should it be indecent to have anything useful in the front half of your property or around the house where people can see it? Why is it low-status to make that area productive? The condition is peculiar to the British landscaping ethic; what we are really looking at here is a miniature British country estate, designed for people who had servants. It has become a cultural status symbol to present a non-productive facade. The lawn and its shrubbery is a forcing of nature and landscape into a salute to wealth and power, and has not other purpose or function.
The only thing that such designs demonstrate is that power can force men and women to waste their energies in controlled, menial, and meaningless toil.