The breakneck speed of scientific research is resulting in a pile of unaddressed ethical questions.
For example: scientists have moved beyond invitro fertilization to assemble stem cells into embryolike structures. While this may be innocent at the moment, it’s a short walk tissues and organs and eventually take on the features of a mature human being.
All of a sudden ethicists are talking about “synthetic human entities with embryolike features”. It’s a slippery slope.
Read Carl Zimmer’s piece over at the Times for more.