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A World Out of Time by Larry Niven

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In A World Out of Time, did you enjoy ...

... relativistic starflight with Bussard ramjets and rigorous physics?

Tau Zero by Poul Anderson

If you loved Corbell training as a State "rammer," the Bussard ramscoop tech, and the brutal consequences of time dilation in A World Out of Time, you'll be right at home with the crew of the Leonora Christine in Tau Zero. When their deceleration fails, they careen toward lightspeed and watch ages—then eons—flicker by, turning hard physics into pulse-pounding survival the way Niven did with Corbell’s mission and return to a transformed Earth.

... cosmic-scale leaps across eons and a far-future Earth remade by grand engineering?

The Time Ships by Stephen Baxter

Corbell’s millennia-spanning journey—waking to a state-run future, then leaping forward to an Earth moved and reworked—echoes through The Time Ships. Baxter pushes Wells’s classic into vast epochs and engineered realities, delivering the same sense of awe you felt when Corbell discovered who had reshaped the planet and why.

... a lone traveler confronting an unimaginably altered far-future Earth?

The Time Machine by H. G. Wells

Like Corbell stepping into a world of Dictators, the Warden’s weather control, and the mysterious "Boys," Wells’s Time Traveller faces the Eloi and Morlocks to uncover how power and evolution have twisted humanity. If Corbell’s culture-shock and archaeological sleuthing of the future grabbed you, The Time Machine delivers that primal, unsettling first contact with our own distant descendants.

... a far-future society tightly managed by hidden systems and gatekept knowledge?

The City And The Stars by Arthur C. Clarke

If the State’s control over Corbell’s body and the Warden’s grip on Earth’s climate fascinated you, Clarke’s Diaspar will resonate. In The City and the Stars, a central Computer curates memory, identity, and society itself—much like the manipulative structures Corbell uncovers—while one restless protagonist pushes beyond the cage to learn what the far future is hiding.

... mind-copying, identity transfer, and reality-upending revelations?

Permutation City by Greg Egan

Corbell’s personality being imprinted onto a new body—and the ensuing betrayals and revelations about who really moved Earth—set you up perfectly for Permutation City. Egan takes the idea of copied minds (think Corbell’s enforced rebirth, but cranked up) and peels back layers of reality itself, culminating in twists as head-spinning as Corbell’s discoveries in the far future.

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