Welcome to the "Real World"

"If antirealism were correct, and nothing can meaningfully be said to exist unless it is observed by a conscious human being, then most of our commonsense beliefs and the most of science itself - such as the sciences of cosmology (to do with the Big Bang theory of the origins of the universe) and evolutionary theory (to do with the origins of the human species) - would have to be rejected.

Sciences that have to do with pre-human states of the universe would have to be rejected as false or even nonsensical."

Ray Bradley
Emeritus Professor of Philosophy,
Simon Fraser University