I don’t have easy answers to any of these paradoxes but will only suggest that in the last 40 years, despite three different Republican administrations, frequent GOP control of the House and Senate, and ostensible Republican majorities on the Supreme Court, the universities have eroded, the borders have evaporated, the government has grown, the debt has soared, the red–blue divide has intensified, identity politics have become surreal, the nation’s infrastructure has crumbled, the undeniable benefits from globalism have increasingly blessed mostly an entrenched elite, the culture has grown more crass and intolerant, the redistributive deep state has spread, and the middle classes have seen their purchasing power and quality of life either stagnate or decline.
The lifelong process of self-definition in this broader sense is construed indeterministically by Nozick. The weighting is "up to us" in the sense that it is undetermined by antecedent causal factors, even though subsequent action is fully caused by the reasons one has accepted. He compares assigning weights in this deterministic sense to "the currently orthodox interpretation of quantum mechanics", following von Neumann in understanding a quantum mechanical system as in a superposition or probability mixture of states, which changes continuously in accordance with quantum mechanical equations of motion and discontinuously via measurement or observation that "collapses the wave packet" from a superposition to a particular state. Analogously, a person before decision has reasons without fixed weights: he is in a superposition of weights. The process of decision reduces the superposition to a particular state that causes action.