This cartoon is pointing at the DNA “code” that is embedded in everybody.  Since there are only four parts to this “code”, Adenine, Cytosine, Thymine, and Guanine, the code seems like it would be simple.  However, since there are so many places for each one, there are an infinite number of combinations.  This is why “everybody is special”. 

            For instance, when performing plyometrics, the exercise must be repeated to exactly the same point every time (or as close as you can get to it).  When an exercise is performed which requires the muscle to contract as far as it can go (as is the case in weight-lifting), the slow twitch fibers are being developed.  The point is to perform the exercise to develop muscle memory for one specific spot on the muscle.  The more times the muscle is contracted to that point, the more it will memorize it, and will get faster.