Nuclear test discussions reinforce tacit norms distinguishing nuclear weapons. [causal]
If on the contrary we wish to enhance the tacit understanding we have with our enemies that nuclears are a class apart and subject to certain reservations, agreement on nuclear test suspension (or even just extensive discussion of such an agreement) will probably contribute to the purpose.
XREF: Connects to theories of nuclear deterrence and tacit norms in arms control literature.
Thomas C. Schelling, The Strategy of Conflict, loc. 605