The cosmic energy budget is derived from first principles with no free parameters. The baryon fraction, matter density, dark energy density, and cosmic flatness all follow from Euler’s number e through the mathematics of torsional relaxation. The results are Ω_b = e^(−3), Ω_m = e^(−3/e), and Ω_Λ = e^(−3/e²), which match observations to within 5%. Cosmic flatness emerges as a theorem rather than an assumption.