What If?: Serious Scientific Answers to Absurd Hypothetical Questions
✓ Product data checked October 15, 2026
This bestselling book takes absurd hypothetical questions (like what would happen if you tried a particular impossible feat) and answers them with genuine scientific reasoning. Rated 4.6 stars from nearly 18,800 reviews, it is a well-established, widely loved gift for the curious and science-minded.
Why it makes a good gift
Best for : Curious, science-minded readers
Best occasion : Birthday, Christmas
Why it works : With nearly 18,800 reviews, it is one of the most consistently loved books in this entire guide, appealing well beyond a niche audience.
For
Him, Her
Budget
$ — Budget-friendly
Frequently asked questions
Do you need a science background to enjoy it?
No, it is written for a general audience and explains the science in an accessible way.
Is it appropriate for teens?
Yes, it works well for curious teens and adults alike.
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