Is the N Equals One Complaint or Objection Really the Answer?

"To say that we only have one example of life is not really true at all," he says. "It's very hard to see how the fact that wings evolved independently three times could really possibly be based on the commonality between these organisms" He argues symmetry is so incredibly useful that we're going to see it on other planets as well. 'As long as those assumptions are met, natural selection will occur'