I have always wondered whether new ideas are seeded by cosmic rays disturbing neurons in the brain..
Living under a rock.
Yeah, yeah, I'm leaving. Put the weapons away...
That would be too many cosmic rays.
And the "flipped the wrong neuron" possibility is much scarier in my mind. And probably in everyone else's brain as well.
That said, just saying "chaos theory means any change can cause anything" is a terribly weak argument for "cosmic rays cause ideas". Not to mention all the reasons why it's implausible as a significant idea generator.