RNA as Temporary Memory Is the Correct Technical Interpretation, Not a Speculation

The passage presents a technical interpretation of biological information processing, arguing that RNA functions as temporary working memory rather than a speculative metaphor. Framed from the perspective that DNA operates as a three-dimensional physical computer, the text explains how biological systems meet the fundamental criteria of computation: physical encoding, decoding, and verification. Information in living systems is not symbolic but is encoded directly in low-energy physical states, such as hydrogen bonding and molecular resonance. DNA provides highly stable, long-term information storage, while RNA serves as a transient, flexible buffer that supports real-time computation, experimentation, and error tolerance—analogous to RAM in electronic computers. Decoding is performed mechanically by ribosomes, which translate codons into amino acids without intrinsic semantic meaning. Functional meaning emerges only after decoding, through correct protein folding and biological activity. Successful information transfer is verified not by abstract symbols, but by physical outcomes: functional stability, protein performance, or system failure. Overall, the text concludes that the DNA–RNA–protein system constitutes a complete 3D biological computing architecture, raising the deeper question of why nature adopted this architecture at the origin of life.