Is the moon there when no one is looking?

What may seem like a theoretical question with little relevance to our everyday lives—and, especially in relation to the question about the moon, may even seem slightly ridiculous—is actually a question with brutal consequences for our understanding of reality, if we follow the question to the depths of its real meaning and descend down the rabbit hole

From a purely scientific point of view: What can research tell us about our experience of reality? This broad field ranges from perception research to quantum physics and from biology to the Big Bang. It includes questions such as “Does the color red exist?” and “Does free will exist?” and “Does the ‘now’ exist?” and “Why doesn’t ‘now’ happen at the same time for every observer?”