A recurring idea in a lot of science fiction is that of society splitting into two distinct groups: 1) advanced, wealthy meta-humans whom can use technology to expand on their existing biological functions and 2) second-class morlock humans who cannot afford such augmentation and live in the sewers, perhaps selling their body parts to the overclass. As time would progress, these differences of class would increase exponentially: augmented humans would get better and better while morlocks would stagnate. My alliance in this fictional scenario of course lies with the superior augmented humans; weak morons (e.g “average” people) should be utilized only as slaves and then disposed of.

But is this idea merely fiction? This quite interesting interview with a neuroscientist about brain-to-computer interactions makes the following point:

Finally, there’s another huge moral issue coming around the horizon, and that is, let’s say we can restore function in the supernatural fashion. Let’s say by placing an implant we could increase your IQ by 20 points. Well, do we as surgeons and clinicians take on potentially risky procedures to give people 20 IQ points, knowing full well that that’s probably something only the wealthy are going to be able to afford and knowing that many people who do not have financial resources are not going to be able to have their IQ improved by 20 points. These are very sticky moral issues that there is no easy solution to.

There actually is an easy solution: Kill the weak and drink their brains in a healthy fruit/protein/brain shake.