The Higgs boson is often referred to as the "God particle" by individuals outside the scientific community, after the title of Leon Lederman's popular science book on particle physics, The God Particle: If the Universe Is the Answer, What Is the Question? While use of this term may have contributed to increased media interest, many scientists dislike it, since it is sensational and overstates the particle's importance. Its discovery would still leave unanswered questions about the unification of quantum chromodynamics, the electroweak interaction, and gravity, as well as the ultimate origin of the universe. Higgs, an atheist himself, is displeased that the Higgs particle is nicknamed the "God particle", because the term "might offend people who are religious". Ironically, many religious believers instead take the particle's potential existence as "proof" that God exists.