“Many life forms with essentially new body types appeared quickly and without precursors in the Burgess Shale in Kicking Horse Valley in British Columbia.”
Briefly, the design inference (the method rather than the book) identifies two features as essential for eliminating chance: improbability and specification.
A new theory of evolution extends Darwinian processes, making them into physical laws based on “learning theory.”
One might call the 20th century a “philosopher of the gaps” period, with scientists basking in the headlines and philosophy finding less and less to do.
In order for evolution to have occurred as the orthodox theory describes, the intricate embryonic development stages of species must have evolved.