Create Your Own Universe: A Cosmic Thought Experiment

Chris Ferrie
4 min readJan 14, 2024

Ever dreamed of playing the role of a cosmic architect? In my book, 42 Reasons To Hate The Universe (And One Reason Not To), we delve into the quirks and challenges of our own universe. But what if you had the power to design your very own universe? Let’s embark on a thought experiment that stretches the limits of imagination and science.

Imagine you have the power to create a universe. What fundamental laws would you establish? How would you design the physics to make it a more (or less) hospitable place for life? Would you create a universe teeming with life or a serene, uninhabited cosmic landscape? Would you eliminate black holes or supernovas? Or perhaps invent new cosmic phenomena?

Crafting the Laws of Physics

Before you get too crafty, there are profound implications of tweaking the universe’s fundamental forces. In a universe where gravity is weaker, celestial bodies might never clump together to form stars or planets, leaving a vast, lonely cosmos. Conversely, if gravity were overpowering, the universe could be a chaotic landscape of black holes, gobbling up everything in sight. Each alteration in these fundamental forces could lead to a dramatically different cosmos, where the very possibility of life as we know it hangs in the balance — as if it weren’t hard enough already!

And what about the electromagnetic force? Shall we get rid of it? Well, atoms, as we know them, would not exist. The electromagnetic force is responsible for the attraction between positively charged protons and negatively charged electrons. Without it, atoms couldn’t form, meaning no molecules, no chemistry, and no life. Electromagnetic waves, which include visible light, wouldn’t exist either. The universe would be perpetually dark. In short, without electromagnetic interactions, the fundamental nature of the universe would be completely altered, making it unrecognizable and likely uninhabitable by any form of life we can conceive.

Ok, could we make it a bit weaker then? For starters, chemical bonds would be weaker. This could result in unstable or non-existent molecules, drastically affecting chemistry as we know it. The balance of forces in stars would be altered as well. Nuclear fusion, the process powering stars, might be less efficient or not occur at all, affecting the energy output of stars and possibly the synthesis of heavier elements.

It seems then we should make it stronger. If we built a universe this way, chemical reactions might be so energetically favorable that they occur too readily or become irreversible. But this could lead to a universe where complex chemical processes, like those necessary for life, are too constrained. With a stronger force, electromagnetic radiation (like UV light) could be more intense or harmful, posing severe challenges for the development of life. The lifecycles of stars could be significantly shortened or altered, affecting the evolution of galaxies and the distribution of elements essential for life.

Love It Or Hate It

Messing with the laws of physics is just one way to change the universe. Imagine tweaking time itself, allowing it to flow at different rates across the universe, or changing the very composition of matter, with silicon replacing carbon as the cornerstone of life. Picture galaxies with radically different densities, affecting the evolution of stars and planets, or planets with highly elliptical orbits causing dramatic seasonal shifts. Consider the impact of modifying stellar lifespans, altering the strength of planetary magnetic fields to either shield life more effectively or expose it to harsh cosmic winds, introducing entirely new types of cosmic phenomena that defy our current understanding, or even adjusting the rate of the universe’s expansion, which could dictate the ultimate fate of everything within it.

Each modification opens a door to a universe wildly different from our own, but also difficult to reconcile with life as we know it. The complex interplay of cosmic forces and the delicate balance required for life is what makes our universe so captivating. This thought experiment, while whimsical, underscores the importance of every element in the cosmic dance, from the smallest particle to the most colossal galaxy. But, though it seems the ingredients of our universe are finely tuned for life, it’s not all stardust and smooth sailing.

In our upcoming book, 42 Reasons To Hate The Universe (And One Reason Not To), we take readers on a journey through the universe’s quirks and challenges with wit and irony. From the sneaky plots of oxygen (Reason 2) to the fragile beauty of our planet (Reason 4), and the surprising dangers of something as mundane as water (Reason 23), each chapter uncovers the surprisingly thought-provoking aspects of our cosmic home.

Scheduled for release on 7 February 2024, 42 Reasons To Hate The Universe (And One Reason Not To) is more than just a book — it’s an adventure into the cosmos, filled with humor and unexpected insights. Pre-order now to ensure you don’t miss out on this enlightening and entertaining expedition. And, for those curious about the “one reason” not to hate the universe, well, let’s just say it’s worth the wait.

What would you change about the universe if you had the power? Or do you find a certain charm in its chaotic, unpredictable nature? Share your thoughts and join the cosmic conversation!

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Dr. Chris Ferrie



Chris Ferrie

Quantum theorist by day, father by night. Occasionally moonlighting as a author.