Post Number:#91 June 28th, 2010, 11:28 pm
Alun wrote:As I've said repeatedly, that has to be confirmed or falsified empirically. I am not going to go dig up papers on every phenomenon you have questions about; this thread was meant to address conceptual issues, not scientific details.
If it hasn't been confirmed empiricaly that it is the same categorical process, it's a fallacy of composition to assert that it is, and so fails as a conceptual model.
Speciation may or may not be the same process as "generating eyesight from scratch". Asserting that it is is not showing that it is. The statement: If natural selection is a sufficient process to generate a variation where some bird offspring cannot mate with the parent lineage, then that same process can produce eyesight from scratch or winged flight from scratch is a non-sequiter.
There is no reason whatsoever to expect that a process that can cause enough variation for speciation can also generate entirely new, functioning organs and abilities from scratch.