I interpreted that as "When people train, their goal in of itself is not usually to run faster or lift heavier weights". (the following might diverge from the a

I interpreted that as "When people train, their goal in of itself is not usually to run faster or lift heavier weights". (the following might diverge from the actual content of the article, the author's english doesn't seem to be that great and I don't think we'll gain anything by taking the article literally)The goal might be overall health, attractiveness, etc. However, that doesn't mean they won't take the training seriously if they think it will help their larger goal. If you saw someone at the gym dilly dallying and doing a seriously half-assed rotation you might think they don't really care about their end goal. In the same vein if you saw a programmer coding something extremely slow just because they couldn't be bothered to put in the tiny bit of extra effort to get to a baseline of performance you might think they don't take their job or future skillset very seriously. Always thinking about the performance of your implementation is a form of training just like lifting weights is. Even if you don't care about making this particular section of code fast, or you don't care whether this particular dumbbell is lifted up and down 10 times in a row, you do those things in service of a greater goal.