It's a lot more nuanced than that. The simple fact is that we know most of the genome is useless. Evolution has already done the experiment for us. Many organis

It's a lot more nuanced than that. The simple fact is that we know most of the genome is useless. Evolution has already done the experiment for us. Many organisms (such as pufferfish) have almost no non-coding DNA. Maybe you could argue that we have lots of non-coding DNA because we are so amazing (actually from a biological perspective we are very close to other vertebrates such as pufferfish), but then you'd have to explain why many algae and amoebas have larger genomes than the human one. The only reasonable explanation that is congruent with the facts is that that the bulk of non-coding DNA is non-functional and its presence or absence is irrelevant.