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2 years ago in Biology , Computational Biology By Kirti
Can biological systems be considered Turing complete?
As a researcher in systems biology, I’m analyzing cellular decision-making as an information-processing problem. The claim of "Turing completeness" appears in literature on DNA computing and cellular signaling pathways. I need to discern if this is a mathematically strict equivalence or an illustrative analogy to guide engineering principles, as it impacts how we model and design biological circuits.
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By Taylor Answered 1 year ago
In my work at the intersection of computational theory and synthetic biology, I've seen this question arise often. The short answer is: certain engineered in vitro systems, like designed DNA strand displacement cascades, can be proven Turing complete. However, for a natural, evolving organism, it's more nuanced. I would recommend viewing it as a powerful framework rather than a strict equivalence. Evolution optimizes for survival, not for clean computational universality, but the analogy is incredibly fruitful for reverse-engineering logic in signaling pathways and for designing novel biological circuits. It’s a guiding lens, not a definitive label.
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