Current blending of "mechanical" and "biological" components is crude but very soon our grasp of technology and biology will improve the the point where "machines" are indistinguishable from "biology." Furthermore biology will be easily modifiable via re-engineering according to the desires of each individual. In the meantime (December 2013) here is a half-cow half-machine artificial human heart.

"This week, French surgeons implanted a Carmat artificial heart in a human patient for the very first time. The device, which combines mechanical components and heart tissue derived from cows, is the first artificial heart designed for long-term use up to five years."

#cow #heart #prosthesis
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