I think this shows (and I'm probably wording this poorly) that all scientific facts can be verified. We (mankind) have built up this body of knowledge, and if

I think this shows (and I'm probably wording this poorly) that all scientific facts can be verified. We (mankind) have built up this body of knowledge, and if you are determined enough you can validate each link of knowledge in that chain to determine the truth. Knowing that a plane flies vs. knowing how it flies is a valuable thing indeed. Kudos to this dad for encouraging curiosity in his children. All too often this trait is squelched.