This manifesto presents a structural diagnosis of the impasse in string theory. The background problem, the landscape degeneracy, and the loss of predictivity are traced to an unexamined one-clock assumption identifying measurement time t with physical evolution time. Union Dipole Theory (UDT) introduces internal time τ as the true evolution parameter and defines the clock-rate field χ(x,τ) via the Two-Clock Projection Law: dt = χ dτ d/dt = (1/χ) d/dτ Reparameterizing the action yields the χ-constraint: δS/δχ = 0 This equation is proposed as the missing dynamical selection principle eliminating non-coherent vacua and collapsing the landscape into a finite UDP-topology classification at the Planck scale. The Permeable Medium (PM) is identified as the physical substrate carrying χ, coupling photon propagation and matter dynamics. Mass is interpreted as local τ-slowdown, and gravity as χ-gradient structure. The manifesto places the string community before a forced structural choice: Either adopt two clocks and recover a selection principle, or retain one clock and accept permanent landscape indeterminacy.