In an exclusive interview, renowned theoretical physicist David Gross reveals his lifelong pursuit of understanding the fundamental forces of nature, the challenges of developing a theory of quantum gravity, and the potential threat to humanity's survival. Gross, a Nobel Prize winner, discusses his journey into physics, the discovery of asymptotic freedom, and the development of quantum chromodynamics, which unified the strong, weak, and electromagnetic forces into the Standard Model. He then turns to his current work on string theory, aiming to unify gravity with the other forces, and the obstacles he faces in this quest.
Gross highlights the difficulty of testing these theories at extreme energy regimes, drawing parallels to the historical development of atomic theory. He emphasizes the importance of experiments in advancing scientific understanding, citing examples like the discovery of atoms and quantum mechanics. However, he also warns of a more pressing concern: the risk of nuclear war. Gross estimates a 2% chance of nuclear war within 35 years, a stark reminder of the potential for human destruction.
The physicist calls for urgent action to reduce this risk, including international dialogue and the dismantling of nuclear arsenals. He expresses a deep preoccupation with the survival of humanity, suggesting that the fate of intelligent life in the universe may be sealed by our own hands. Gross concludes by emphasizing the need for global cooperation to prevent the impending catastrophe, leaving readers with a sense of urgency and a call to action.
