Gravity is one of the most familiar forces in science—and one of the least understood. In this bold and imaginative book, Dr John Williams reopens the question at the heart of physics: what if gravity does not pull, but pushes? Combining scientific curiosity with independent thought, he reinterprets gravity, mass, time, relativity and the evolution of the universe through a strikingly original framework. Challenging orthodoxy while engaging some of the biggest mysteries in cosmology, Gravity 2.0 offers readers a stimulating and unconventional journey into the foundations of reality.