Google's Cyborg-Related Research

Google is producing artificial human skin to support their experiments in cancer detection:

http://www.independent.co.uk/news/science/google-is-making-human-skin-as-part-of-research-into-wristband-that-can-detect-cancer-10015423.html

Obviously the results of such research also will assist in the creation of cyborgs.

Which makes more sense at this point in Earth's history?

• Detect and cure more human diseases, potentially allowing the human population to continue to increase; or
• Create cyborgs to replace us and to allow rich people to live forever.

You know the answer; you're just afraid to face it.