After my mention of technology yesterday, I got to musing
about an interesting fact. It is that all things cycle in human experience, but
inventions cumulate and seemingly are never lost. Empires may crumble but
useful knowledge is never forgotten. A significant test of that lies ahead in
coming centuries if, as I am fairly convinced, modern culture will collapse as
one of its major supports, fossil energy, is finally exhausted. Will the use of
electricity—unquestionably the most important discovery of this particular era
of modernity—also disappear? My bet is that it won’t. What goes up must come
down—to be sure. But useful knowledge just keeps rising.
That titular phrase is interesting. Pop culture attributes the
line to Isaac Newton, who never actually said it. What Newton did say, in Principia Mathematica, was something
else. He said: “Every body continues in its state of rest, or of uniform motion
in a right line, unless it is compelled to change that state by forces
impressed upon it.” Translated into pop lingo, Newton said: “What goes up will
come down—as soon as it gets tired.”
We may exhaust our fossil fuels, but the knowledge that
motion can be used to capture invisible energy that’s simple there, in the air, you might say, will
not be lost. Knowledge belongs to a range of human experience not in the least
affected by gravity or external forces. We may be on the way into a new Dark
Age, but it will be lit by electricity. Somehow. Somehow we’ll manage to keep
the copper turning inside its jacketing magnets to hold on to something that
went up, spectacularly, in the nineteenth century and will never be forgotten
again.