Joined: Mar. 2005
|No, I think that we do have to consider that the actual observed unity is one of solutions and that it is not clearly an aesthetic preference.|
The unity is a unity of structure, and does not concern aesthetic preferences. I am employing a basic metaphysical principle, viz., that sameness of cause produces sameness of effect. That principle is operative in common descent and common design.
|The Common Descent explanation expects these elements to be highly conserved....|
Conservation, here, is merely a reformulation of the metaphysical principle mentioned above. As such, it is proper to common design as well.
|...the Common Designer explanation has no basis for choosing these elements over any others.|
That is a different issue. Whatever the elements (i.e., structures) are, common design predicts that they will be common. That is, the same elements will be shared by all organisms.