The Threshold Effect
Alfred Mummery wrote in his 19th century classic book, My Climbs in the Alps and Caucasus, “It has frequently been noticed that all mountains appear doomed to pass through the three stages: An inaccessible peak – The most difficult ascent in the Alps – An easy day for a lady.” While the misogynistic temper of this famous quote is obsolete, its more general point seems to ring true.