<p dir="ltr">The Computed Universe (CU) model presents a unified causal framework in which relativity, gravitation, and cosmic expansion emerge from a single underlying mechanism: the discrete propagation of causal updates through a voxelated spacetime substrate. Each voxel processes one causal update per Planck tick,</p><p dir="ltr">tP = 5.39 ×10^−44 s,</p><p dir="ltr">but internally comprises approximately 10^51 sub-ticks of duration</p><p dir="ltr">tsub = 5.39 ×10^−95 s, ℓsub = c tsub = 1.62 ×10^−86 m,</p><p dir="ltr">defining the minimal temporal and spatial resolution of causal computation.</p><p dir="ltr">Within this model, all physical phenomena—from time dilation and gravitation to universal expansion—arise from the local modulation of available causal processing capacity. Increased causal load extends local tick duration, slowing clocks and expanding spatial intervals in direct proportion to causal update density.</p><p dir="ltr">A key result of the CU analysis is the derivation of the Hubble constant as an identity rather than a fitted parameter:</p><p dir="ltr">H0 = 1 / t0</p><p dir="ltr">= 2.276 ×10^−18 s−1 = 70.23 km s−1 Mpc−1</p><p dir="ltr">where t0 = 13.93 Gyr is the JWST-measured age of the observable universe. This satisfies the exact causal equilibrium relation H0t0 = 1, confirming that the expansion rate is precisely balanced with the universe’s temporal evolution.</p><p dir="ltr">Extending this equilibrium to the complete universe yields</p><p dir="ltr">HCU ttrue = 1, ttrue = 27.86 Gyr,</p><p dir="ltr">implying that the observable epoch corresponds to the mid-point of the universe’s full causal history.</p><p dir="ltr">These results establish H0 = 70.23 km s−1 Mpc−1 as a fundamental constant of nature—a causal frequency linking time, space, and expansion through the same process that governs the tick of a voxel. Together, the derived relations demonstrate that the universe is a self-consistent causal computation whose evolution proceeds through balanced creation at the frontier, maintaining informational and energetic equilibrium across all scales.</p>