The Global Shift to Molecular Computation & Chemical Logic Gates

Molecular computation represents a foundational paradigm shift in information processing, moving the primary mechanism of calculation from controlled electron flow within solid-state semiconductors to engineered chemical state changes. This transition is necessitated by the predictable thermodynamic constraints faced by traditional Complementary Metal-Oxide-Semiconductor (CMOS) scaling; specifically, the increasing power density and heat dissipation challenges encountered at sub-10 nm fabrication nodes render continued reliance on pure silicon electronics unsustainable for advanced computational demands. Molecular computing leverages chemistry's inherent capability to store and process information using molecular bonds and reaction kinetics as scalable logic operations, effectively treating chemical systems as massive, programmable computation substrates.