rationalskepticism.org

DavidMcC wrote:

Shrunk wrote:

Wortfish wrote:

Thommo wrote:
Ok, so this is very important. You have acknowledged here that it is not true that speciation is impossible under the conditions you specified.

I can understand speciation occurring as a result of two isolated populations diverging apart without violating Dawkin's condition. In that scenario, it is the accumulated differences between the populations that matter, not between parent and offspring.

I see. So differences are accumulating between the two parallel lines, but within the lines (both of which begin with a single common ancestor) nothing is changing.

That isn't what he said. Lines can diverge from each other without becoming internally more divergent.