It is not only the best adapted class that survives, aka the "fittest." They only need to be good enough to survive and reproduce. In other words, the princip

It is not only the best adapted class that survives, aka the "fittest." They only need to be good enough to survive and reproduce. In other words, the principle should be stated as "survival of the good enough." I know it doesn't roll off the tongue as well, but is more accurate. Perhaps, survival of the fit. (period)