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Why Do We Exist?: The Nine Realms of Universe that Make You Possible book cover by Hakeem Oluseyi
Hardcover

Why Do We Exist?: The Nine Realms of Universe that Make You Possible

by Hakeem Oluseyi

From $22.40 / copy at 25+ copies; lower per-copy prices at higher quantities (see Volume pricing) As low as $19.84 at 1,000+

Total $560.00

Hardcover · 256 pages Random House Publishing Group · 2026

Format

Hardcover
Volume pricing

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About the book

Why Do We Exist?

A boundary-breaking astrophysicist reimagines the universe—and our place within it—in this audacious journey through the Nine Realms of the cosmos.

“This book explains the universe and then quietly explains you. Which is unfair, because I was just trying to read about space. . . . Smart, funny, and unexpectedly moving.”—Sarah Silverman, comedian

The universe gave rise to everything: stars and cells, minds and memories, purpose and pain. But it doesn’t care about us. It follows its own rules. And now, according to Dr. Hakeem Oluseyi, we finally understand enough about those rules to ask the big questions like we mean it: Why do we exist? Are we alone? How did we get here? What comes next? And—perhaps most urgently—is there reason to hope?

Heck yeah, there is!

Dr. Oluseyi is no ordinary scientist. A former street kid turned world-renowned cosmologist, he realized something bold: The story of existence can be told as a passage through nine interwoven realms—each revealing a new layer of cosmic truth.

There’s the Middle Realm, where we live; the Realm of Life, where organisms flourish across the vastness of space; the Cosmological Realm, where galaxies dance and collide; the Dark Realm, dominated by unseen energy and invisible forces; the Quantum Realm, where reality defies intuition; the Temporal Realm, where time begins, flows, and perhaps ends; the Multiverse Realm, where our universe may be one among many; the Realm Beyond Horizons, where observation breaks down; and the Realm of Imagination, where insight, curiosity, and creativity shape our understanding of it all.

In Why Do We Exist?, Dr. Oluseyi cracks open these realms with clarity, humor, and radical honesty, bridging cutting-edge physics, personal narrative, and philosophy. The result is a blueprint for understanding reality itself and a surprising case for human potential in an indifferent cosmos.

This isn’t just a science book. It’s a survival manual for the universally curious.

Details

Publisher
Random House Publishing Group
Author
Hakeem Oluseyi
Format
Hardcover
Published
Apr 21, 2026
ISBN-13
9781984819123
ISBN-10
1984819127
Pages
256
Carton quantity
12 copies
Buying for a group

Why Do We Exist? for groups: pricing

Volume pricing applies automatically in your cart. No codes, no account needed.

CopiesPrice per copyYou save
25 – 99 $22.40 30% off list
100 – 249 $21.76 32% off list
250 – 499 $21.12 34% off list
500 – 999 $20.48 36% off list
1,000+ $19.84 38% off list
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Where can I buy 100 copies of Why Do We Exist??

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What does Why Do We Exist? cost when I buy for a group?

Volume pricing applies automatically in your cart, with no code needed. Price per copy: 25 to 99 copies, $22.40 (30% off list); 100 to 249 copies, $21.76 (32% off list); 250 to 499 copies, $21.12 (34% off list); 500 to 999 copies, $20.48 (36% off list); 1,000+ copies, $19.84 (38% off list). Need a different quantity, or a quote to forward for approval? Ask a specialist and we will confirm pricing before you pay.

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