Learning on the Job

Learning on the Job (aka on-the-job learning or OTJ) training is a form of learning defined on B293. It happens at the slowest rate: it takes 4x as long, as opposed to 2x as long for self-study, so it takes 800 hours instead of 200 hours to get a skill point. That is 100 work days.
Even this slow rate could give a dramatic rate of improvement over a lifetime which doesn't line up with how some people have low skill levels later in life.
Cannot Learn was a way one could prevent that, and to partially give it back sometimes one could take Can Learn with limitations. For example: requiring fatigue points, or "requires attribute roll" (which costs FP to continue if it fails) so people would just often avoid learning to conserve energy. This would not prevent learning altogether, just greatly slow it.
Laziness was later tweaked in Social Engineering: Back to School to specifically inhibit OTJ training altogether.
B13 specifies that Job Details defines OTJ opportunities.
Category:Rules