Yes! Which leads into strange territory, because we can say that attachment is not entirely rational, but is influenced by genes pointing us toward more successful reproduction, without concern for creating knowledge. But then this environment of instincts is the environment we've built up all our cultural store of meaning in, it's the human condition, so the argument can be turned around to say that meaning isn't entirely rational. So even gene-driven attachment isn't meaningless, but at the same time, I don't want to be bullied and herded around emotionally by little nucleic acid spirals just so they can replicate themselves.