Quantum Vacuum | Universe's Secret Engine

Challenges and Open Questions: What Lies Ahead? The vacuum poses significant challenges, such as the cosmological constant problem, where predicted vacuum energy dwarfs observed values. Why might this discrepancy persist, and what could resolving it reveal? The vacuum’s role in unifying forces, including gravity, seems crucial for theories like string theory. What obstacles remain? Future research might explore non-perturbative effects or new experimental probes.