UV completeness of string theory

Establish whether string theory is ultraviolet complete by proving that its dynamics remain predictive and free of pathological divergences at arbitrarily high energies (equivalently, arbitrarily short distance scales), thereby confirming that a string-theoretic theory of everything possesses formal consistency in the ultraviolet.

Background

UV completeness is sometimes treated as a criterion of theory acceptance for fundamental theories. String theory, proposed as a candidate theory of everything, is widely believed to be UV-complete due to the extended nature of strings, but the claim lacks a definitive proof.

The author notes that while the structure of string theory strongly suggests UV completeness, a rigorous demonstration is missing, leaving open the question of whether the theory is formally predictive at all energy scales.