tau0_SI
plain-language theorem explainer
tau0_SI calibrates the base recognition science tick duration to 7.3 times 10 to the minus 15 seconds in SI units. Galactic timescale calculations and phi-ladder rung time formulas cite this constant to anchor the ladder in physical units. The definition is a direct numerical assignment with no lemmas or computation.
Claim. The fundamental RS tick time in SI units is defined as $7.3 times 10^{-15}$ seconds.
background
Recognition Science organizes timescales on the phi-ladder where each rung scales the base tick by a power of phi, with tau_N defined as tau_0 times phi to the N. The constant tau0_SI supplies the SI calibration for the fundamental tick tau_0. Upstream rung definitions assign integer levels to particles and sectors, such as the fermion rung mapping the electron to level 2 and the top quark to level 21, and similar assignments for ores and anchor sectors.
proof idea
The definition is a direct numerical assignment of 7.3e-15 to tau0_SI. No lemmas are applied and no tactics are used.
why it matters
This definition anchors the phi-ladder time formulas in SI units and feeds directly into N_galactic, which computes the log-base-phi ratio for galactic timescales, and into phi_rung_time, which scales tau0 by phi to the N. It supports the theorem tau_star_is_phi_rung showing the galactic time lies near rung 142. The calibration connects to the framework's T7 eight-tick octave for time periods.
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