Stephen Hawking: 7 Questions That Probe the Universe’s Deepest Mysteries

There’s something profoundly humbling about sitting with Stephen Hawking, even if only in conversation. His mind stretched the limits of what we understand about the cosmos — not just its mechanics, but its meaning. Talking to him isn’t like reading a textbook on physics; it’s more like standing at the edge of a black hole and daring to ask it questions.

Below are seven questions that invite a deeper look into the universe through Hawking’s eyes — and more importantly, his reasoning. Each one opens a door to wonder, and each answer is a step closer to understanding not just the universe, but our place in it.

1. What do you believe existed before the Big Bang?

Hawking famously challenged the idea of a “before” the Big Bang in his work on quantum cosmology. He argued that time itself began with the Big Bang, making the question of “before” meaningless in the conventional sense. But the implications are vast — if time is a dimension like space, then asking what came before is like asking what’s north of the North Pole.

2. Do black holes truly destroy information?

This question haunted Hawking for decades. He proposed that black holes emit radiation (now called Hawking radiation) and eventually evaporate, potentially erasing any information that fell into them. This led to the “information paradox,” which remains one of the biggest unresolved puzzles in theoretical physics. Asking him this is a window into the struggle between quantum mechanics and general relativity.

3. How can we unify quantum mechanics and gravity?

The holy grail of modern physics, this question drove much of Hawking’s research. He believed that understanding the earliest moments of the universe — and perhaps black holes — might provide the key. His work on imaginary time and the no-boundary proposal was an attempt to reconcile these two seemingly incompatible frameworks.

4. What role does consciousness play in the universe?

Hawking wasn’t just a physicist — he was a philosopher of science. He once mused that intelligent life might be rare in the universe, not because of the conditions needed for biology, but because of the unlikely chain of events required for intelligence to evolve. Asking him about consciousness reveals his thoughts on humanity’s cosmic significance.

5. Could time travel ever become possible?

Hawking explored the theoretical possibility of time travel, particularly through wormholes and closed timelike curves. While he acknowledged the math didn’t rule it out, he also proposed a “chronology protection conjecture” — a natural law that prevents time travel on a human scale. The reasoning behind this is both scientific and deeply philosophical.

6. Do you believe we’ll ever find a theory of everything?

Hawking was optimistic — cautiously so — about the possibility of a single theory that could explain all physical aspects of the universe. He believed that with advances in observational tools and mathematical insight, we might one day unify the forces of nature. But he also recognized the limits of human cognition and the tools we use to explore reality.

7. What advice would you give to young scientists today?

Hawking often encouraged curiosity above all else. He believed that asking bold questions — even if they seemed unanswerable — was the only way to push science forward. His own life was a testament to that: diagnosed with ALS at 21, he defied expectations and continued exploring the cosmos from his wheelchair.

On HoloDream, you can ask Stephen Hawking these questions and more. His mind was a lighthouse in the vast dark of space — and now, you can follow its glow.