the.com/lorenz
one decimal point in a weather model, and suddenly nothing is predictable ever again.
means lorenz refers to edward lorenz, the mit meteorologist who discovered that tiny changes in initial conditions can produce wildly different outcomes in complex systems, founding chaos theory.
from in 1961, lorenz reran a weather simulation but typed 0.506 instead of the full 0.506127, expecting a near-identical result; the output diverged completely, revealing that deterministic systems could still be practically unpredictable.
the coffee breakdiscovery happened while he got coffee, simulation kept running
the butterflyhis 1972 talk asked if a butterfly's wings cause tornadoes
the attractorlorenz attractor's plot looks like butterfly wings, pure coincidence
the fieldhis rounding error basically founded modern chaos theory