the.com/estimation
the art of being approximately right instead of precisely wrong.
means a reasoned guess at a quantity or value, made without exact measurement but with enough logic to trust it.
from from latin aestimare, to appraise or set a price on, the root it shares with esteem — literally, deciding what something is worth.
fermi problemsphysicists estimate absurd things like piano tuners in chicago.
margin of errorgood estimates admit their own uncertainty out loud.
before calculatorsengineers built bridges on slide-rule estimates alone.