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This is incorrect. A learning curve measures expertise on the x axis and effort on the y axis. Hence the saying "steep learning curve".



Calling it inaccurate was too harsh; my definition only became common usage in 1970, and the original “time vs learning” is still used in academic circles.


Academic circles? That's how it is just used in general. You're the anomaly.


To clarify, you believe the common use of “steep learning curve” means easy to learn?


I was objecting to your definition of effort vs expertise. It's quite obviously expertise vs time/experience.

This is described in this wiki article that was linked in another comment.

https://en.wikipedia.org/wiki/Learning_curve

Which also points out how people rarely use the term properly, and call something difficult to learn a "steep" learning curve. It's the opposite.



It is unclear how this comment was meant; in any case, it is appreciated. As stated in the link:

“The common English usage aligns with a metaphorical interpretation of the learning curve as a hill to climb.”

Followed by a graph plotting x “experience” against y “learning.”


That’s interesting. I always intuitively assumed x-axis was progress and y-axis was cumulative effort.




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