By "invisible unicorn" I meant a unicorn that doesn't have any effect on the physical world. Our universe could behave, in some ways, like a computer simulatio

By "invisible unicorn" I meant a unicorn that doesn't have any effect on the physical world. Our universe could behave, in some ways, like a computer simulation (but the question is, in what specific ways?). But it is similar to light rays behaving like waves. Which is different from light rays being equivalent to waves.