Bitcoin's value could plummet to zero if defenses against quantum computing threats are not established by 2026, according to Deloitte research. The study highlights that 25% of all Bitcoins are vulnerable to quantum attacks, potentially risking losses in the hundreds of billions or even trillions of dollars. Charles Edwards, founder of Capriole Investment, emphasized the urgency of addressing this threat, warning that the community's delay in building quantum-resistant systems could have catastrophic consequences for Bitcoin's future.