As an aside, it should be noted that all cells carry the complete blueprint for a human being. The open question for a long time was whether it would be possibl

As an aside, it should be noted that all cells carry the complete blueprint for a human being. The open question for a long time was whether it would be possible to push adult cells 'back' in time to a state where they could become another type of cell. Thanks to the work of tenacious scientists, we know that the answer is yes! It can be done. Methods have been discovered to coax already differentiated cells to become pluripotent. That is, adult cells that are already of a specific 'type' have been reprogrammed to become stem cells. I in no way intend this to be an argument against embryonic stem cells. I just find it to be extraordinarily interesting and an intriguing avenue for further development. More info here: https://en.wikipedia.org/wiki/Induced_pluripotent_stem_cell https://en.wikipedia.org/wiki/Induced_pluripotent_stem_cell