Reading Who Built the Moon? felt like going down one of the most fascinating rabbit holes I’ve ever stumbled into. The book takes a pretty bold approach from the start, asking a question that most of us have never even thought to ask: What is the Moon, really—and could it actually be… not natural?

I know—it sounds completely out there. But that’s kind of the magic of this book. Knight and Butler don’t just throw a wild theory at you and call it a day. They build their case slowly, connecting dots between astronomy, ancient history, mathematics, and even mythology. It’s packed with weird coincidences that make you stop and say, “Huh… that is strange.” For example, the Moon is just the right size and distance to perfectly cover the Sun during a solar eclipse. What are the odds of that happening so precisely? And how did ancient people seem to understand so much about the Moon and Earth that we only recently rediscovered?

The authors go deep into measurements used by ancient civilizations and argue that there’s a kind of hidden, mathematical harmony between the Earth, the Moon, and the Sun. Their big claim? That the Moon might have been intentionally placed—possibly even built—by some kind of intelligence in the distant past. It’s a massive idea, but they present it with a lot of enthusiasm, curiosity, and surprisingly detailed research.

Now, I’ll be honest—some parts of the book are a stretch. There were definitely moments where I had to remind myself to take it all with a grain of salt. It dips heavily into speculation and doesn’t always stay grounded in traditional science. But at the same time, that’s what makes it such a fun and mind-bending read. It’s less about proving a point and more about challenging the way we think about the world around us.

If you’re into mysteries, ancient knowledge, or anything that makes you question the status quo, you’ll probably find this book as intriguing as I did. It’s definitely not your typical space or science book, but if you’re up for something a little unconventional—and a lot thought-provoking—it’s worth picking up. Just go in with an open mind and a sense of curiosity, and you might find yourself seeing the Moon in a totally new way.