‘What if…?’ are the two words that sow the seeds for human speculation, experimentation, invention, evolution, revolution, revision and change. Consider the consequences of travelling back to the future or exploring the past. What if we dug a black hole or built a warp drive? How far away is science fiction from science fact? Explore aspects of physics that today seem as strange as when they first fooled great thinkers of the past or that remain speculative today.

What If Einstein Was Wrong? gathers together a team of scientific scholars to consider 50 key questions and their consequences, along with 7 historic speculations and their significance. In so doing, it offers you a new way to build up your understanding of the most topical science.

To speculate is to accumulate. To read a ‘What If…?’ is to accumulate the knowledge you need to debate the shape that our universe and world will take in the future.