> Why would he not "assume" that when humans have shaped their world so far beyond what it was, creating intricate layers of art, culture and science; even going into space or in the air? Man collectively tamed nature and the rest of the animal kingdom in a way that no beast ever has.
Because whales or dolphins didn’t evolve hands. Hands are a foundational prerequisite for building technology. So if whales or dolphins had hands we don’t know if they would develop technology that can rival us.
Because we don’t know, that’s why he says don’t assume. This isn’t a “deep down we know” thing like your more irrational form of reasoning. It is a logical conclusion: we don’t know. So don’t assume.
