Furthermore: "Photosynthesis is shown to be quantum mechanical" - well, yes, just like everything else in physics, with the possible exception of those issues, like black holes, where gravity is dominant. The quantum-mechanical basis of chemistry has been included in high-school chemistry curricula for at least half a century, so it would be quite remarkable if photosynthesis were a exception.
While it is possible that the human mind has no classical-approximation explanation, the equating-of-ignorance argument, stated in the article's subtitle, is no reason to think it is so (and quantum mechanics is much better understood than the human mind, anyway.)
While it is possible that the human mind has no classical-approximation explanation, the equating-of-ignorance argument, stated in the article's subtitle, is no reason to think it is so (and quantum mechanics is much better understood than the human mind, anyway.)