Among others, John Harris defends the position that there is a moral obligation for society to commit to human enhancement, since it brings about a change for the better in the world. However, Harris’ arguments to support this moral obligation, like the continuum between medicine and human enhancement and the comparison between non-enhanced and disabled people, do not hold and are based on ableism. Besides, in Harris’ arguments he implicitly reduces the human being to a product of capabilities. In order to have a meaningful argument about human enhancement, the human being should be seen as an entity that is more than its individual physical and mental capacities. Moreover, the human enhancement debate should be broadened and should incorporate a more encompassing relational (rhizomatic, contextual) enhancement instead of mere functional enhancement (of mental and physical capabilities of the individual).