Jonathan Steinhauer looks more deeply into the phenomenon of level based games in "Breaking the Level Barrier, Part 2". This follows his piece two weeks ago where he first examined this topic.
That's not to say that step learning doesn't exist. But it is generally found in activities were you either can or can't do a thing. For example, in the quest to fly, the Wright Brothers didn't gradually fly. The first time occurred in a single instant and once that was achieved, they could repeat the feat (although I would argue that the gaining of knowledge that enabled flight was still slope-learning). Some growth in life tends to be a blend, such as studying mathematics. The gaining of knowledge and skill in math occurs on a learning curve, but there are "steps" along the way, such as basic addition and subtraction, Trigonometry, and Calculus.
Read more after the leap.
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