Larry Niven is a towering figure in the realm of science fiction, and I felt honored to interview him via Zoom from his home in Los Angeles. His seminal 1970 novel, Ringworld, is this month’s selection for the New Scientist Book Club. However, his literary contributions span numerous novels and short stories, including one of my personal favorites, An outdated world. At 87, he continues to write, and we discussed his insights on Ringworld, the projects he’s currently working on, and his thoughts on humanity’s potential to venture beyond our solar system. Below is an edited transcript of our conversation.

Emily H. Wilson: Larry, thank you for participating in this interview and for being part of the New Scientist Book Club. It is a tremendous honor to speak with someone so central to the evolution of this genre.

Larry Niven: Thank you.

EHW: What inspired you to become a science fiction writer?

LN: I was immersed in science fiction during my early adulthood, but I only discovered the fandom when I started selling my stories. That connection was invaluable for me.

EHW: What was the genesis of the idea behind Ringworld?

LN: The concept of the Dyson sphere—hypothetical megastructures in space—was introduced to me by another writer, possibly Paul Anderson. Intrigued by the idea, I realized we could observe other civilizations based on their energy usage. But to harness that energy, one needs a way to block sunlight. I envisioned using rotational gravity for the Dyson sphere, focusing on its equatorial regions, and thus conceptualized the “poor man’s Dyson sphere.”

https://www.youtube.com/watch?v=a10qyat-oy8

EHW: A book club member noted that Ringworld evokes a sense of awe and wonder.

LN: My choice to depict a grand structure, despite the risk of ridicule, contributed to my success. Ringworld serves as a knowledge playground where readers can engage with its complexities and even rediscover my oversights.

EHW: Reflecting back from 2025, it seems like it was an immediate success, altering your career trajectory.

LN: That’s absolutely true.

EHW: You mentioned in your writings that New Scientist highlighted how students and scholars engaged with physics concepts in Ringworld post-publication. How did that affect you? Do you think we will see such global interaction today?

LN: Science fiction permeates various media like film and comics. While Ringworld remains significant, capturing the attention of mathematicians isn’t straightforward.

https://www.youtube.com/watch?v=xifbspaz83u

EHW: What is the essence of science fiction?

LN: It’s about envisioning the future. Things are in flux, and science fiction highlights the notion that minds can think similarly but are fundamentally different.

EHW: Why did you write Ringworld Engineers as a sequel? One book club member mentioned that it was their first introduction to your work.

LN: I aimed to improve upon Ringworld since its inhabitants were not fleshed out enough. Robert Heinlein told me that the two books together formed a significant narrative.

EHW: The universe in Ringworld set in known space led to extensive narrative weaving. How did that come about?

LN: It seemed logical to create interlinked stories within the universe I had built. This web of narrative has been evolving for over 60 years.

EHW: If you were to rewrite Ringworld today, would it differ from the original?

LN: I’ve often thought that if I were to begin anew, I would focus on the barriers of interstellar travel. Building a ring world implies challenges in reaching other stars.

EHW: At what point in your career did you become a full-time science writer? Did you ever balance it with other jobs?

LN: I was a science enthusiast, particularly in astrophysics and astronomy. At 24, I realized my options were limited, which led me to start writing.

EHW: How is science fiction perceived today?

LN: I’m not as engaged with the field nowadays. I often buy books online for my Kindle, but that doesn’t mean I make the most of the current offerings.

EHW: One of my favorites of yours, An outdated world, isn’t widely read despite being a fantastic story told concisely. What can you share about writing that book?

LN: Initially, it was a dystopian tale about people frozen for the future, struggling with their wishes when they were revived—without civil rights. I encapsulated that in a short story called Rammer, which turned into the first chapter of An outdated world. I eventually continued that narrative as I became comfortable exploring the future.

EHW: You were known for your collaboration on The Mote in God’s Eye with Jerry Pournelle. How do two authors co-write a novel?

LN: Jerry and I collaborated on roughly nine novels. When he proposed the idea to co-write, I accepted without knowing where it would lead, and it turned out to be both fun and challenging. Our involvement with the Los Angeles Science Fantasy Association helped shape the narrative over three years and even earned us an award for the best unfinished novel.

EHW: Before this interview, you mentioned your book Draco’s Izakaya, a collection of short stories. I approached it hesitantly, as I’m not a short story person. It uniquely merges narratives, introducing readers to aliens through the bartender’s character. It felt more like a novel than a traditional collection. What was your aim in writing it?

LN: I started writing short stories knowing they needed substance beyond mere glimpses. My goal for Draco’s Izakaya was to convey wisdom within a lean structure, crafting a narrative that felt unified despite its brevity.

EHW: If you were to recommend four other books alongside Draco’s Izakaya, which would you choose?

LN: Depending on the individual asking, I might suggest: Lucifer’s Hammer for casual readers, Scaffold for military personnel, Ringworld for true fans, and Destiny’s Road for general audiences as well.

https://www.youtube.com/watch?v=vg3u-set38c

EHW: What are you currently working on?

LN: I’m collaborating with Stephen Burns on a space novel featuring Gil “Arm” Hamilton. We’ve begun an anthology project, and our short story, The Sacred Cow, which features Gil, won an award from Analog Magazine. Now, we’re encouraged to produce more content.

EHW: A few quick questions: What is your favorite science fiction book that you didn’t write?

LN: I truly enjoy Nova by Samuel R. Delany.

EHW: What is a favorite book in a genre you haven’t ventured into?

LN: I believe it must be The Wizard of Oz.

EHW: What is your favorite science fiction television show?

LN: Star Trek, but I’m not as caught up with it.

EHW: What is your all-time favorite sci-fi film?

LN: I have a fondness for Destination Moon and admire ambitious works like 2001: A Space Odyssey and Rollerball for their ambition.

EHW: What advice would you give to aspiring science fiction writers today?

LN: Simplify your approach, much like I did.

https://www.youtube.com/watch?v=llzdlkwgdpo

EHW: Do you still wish to meet aliens?

LN: I think I’m prepared to encounter the puppeteers from my works or the Mediator.

EHW: And do you think humanity will eventually leave this solar system?

LN: We’re making advancements, though not as quickly as we imagined. Initially, we thought reaching the moon would be simple, and it has proven quite challenging.

Larry, thank you for this enlightening conversation. It has truly been a privilege.

LN: You’re welcome. I always enjoy speaking with New Scientist. Be sure to read and savor!

Larry Niven’s Ringworld is the latest selection for the New Scientist Book Club. Join us to read along!