Internet author Bryan Nelson makes some interesting and entertaining predictions in his article Mother Nature article “Projecting human evolution: 5 traits we might possess in the future” from May 2012. Using current and past trends to predict our next evolutionary traits, his article is certainly stirring some debate.
Bryan suggests that future humans will lack wisdom teeth, become hairless, become resistant to heart diseases and diabetes, be of a similar race and be relatively weak with susceptible immune systems – all traits- he says- that will develop because we no longer use them or will get used to them.
The Hardy-Weinberg equilibrium, an evolutionary principle says that evolution is possible whenever anyone influence of natural selection, gene flow, genetic drift, mutation or non-random mating is present. Naturally, the conclusion is evolution is an ongoing business. After all, as he clearly points out, we depend heavily on machines to do heavy work, so will become weaker in future and wil become susceptible to pathogens because we don’t need our natural immune systems due to modern medicine. And from history, he claims, humanity has always shed off traits it doesn’t need.
So according to Mr. Nelson, we will evolve into a completely machine dependent species owing to our increasing dependency on them, lose our wisdom teeth because we no longer have stuff as hard as our ancestors had to bite into, our bodies will eventually get used to the junk food we eat and develop resistances to diseases that these foods cause, and that currently increasing interracial sexual relationships will ultimately make us all of one race.
You can find his original article on the Mother Nature Network.