When I was a teenager, I remember hearing the question “If a tree falls in the forest and no one is there to hear it, does it make a sound? – and thinking what a stupid question – of course it makes a sound. But the longer I teach science, and the more I learn about our world at the quantum level, the less sure I am about the true nature of reality. Like Neo in The Matrix – do I want the blue pill or the red pill? Of course, when a tree falls in the forest it sets up a … [Read more...]