the.com/linear
Reality's optimistic assumption that the universe travels in straight lines.
means Arranged in or progressing along a straight line, where output changes in steady proportion to input.
from From Latin linearis, of lines, from linea, a thread or string stretched taut by builders to keep edges honest.
Math meaningDoubling the cause doubles the effect, always.
Rare realityMost natural systems are stubbornly nonlinear.
AlgebraAn entire branch studies these polite, predictable lines.