A quantum computer will break Bitcoin in just 2-9 years if we don't upgrade. With high probability in the 4-5 years range. This is the timeframe all quantum experts converge on. Don't believe the naysayers. We have already entered the Quantum Event Horizon: the frontier risk of a quantum hack is the same amount of time away as upgrade consensus and roll-out. We must act in 2026. Let's finish and deploy BIP 360.(Charles Edwards)