the.com/learning curve

The polite way to say this will hurt before it helps.

means The rate and difficulty of gaining a new skill, especially the rough early stretch where confusion outweighs competence.

from Born in early 20th-century psychology and economics, where researchers literally plotted graphs of performance against time or practice — plotting how fast workers or learners improved. A 'steep' curve meant fast gains (or, confusingly in casual speech today, a hard climb), while a shallow one meant slow, grinding progress. The phrase escaped the lab and the factory floor to become everyday shorthand for any rough patch of getting good at something new.

actual shape
usually steep, rarely a smooth curve
origin
from 1885 psychology, not swimming lessons
steep vs shallow
steep means hard, often misused as easy
real measure
time between confidence and competence
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