Can We Build Virus-Proof Life?

What happens when scientists rewrite the genetic code that nearly all life on Earth shares? Dr. Akos Nyerges, a genome engineer and independent research group leader at Harvard Medical School, joins Galaxy Balance to explore the emerging world of synthetic genomes. His lab is engineering bacteria with altered genetic codes that can resist viral infection, restrict the exchange of genetic information, and incorporate chemical building blocks beyond biology’s standard 20 amino acids. Akos explains how these genetic firewalls could make engineered organisms safer for drug delivery, biomanufacturing, and environmental applications. We examine why large-scale genome rewriting often produces sick cells, how multi-omics can reveal hidden errors such as accidental promoters and mistranslated proteins, and how his team restored recoded bacteria to near-normal fitness. The conversation also explores AI-assisted genome design, cloud laboratories, engineered living medicines, horizontal gene transfer, the risks of mirror life, and the regulatory frameworks needed as synthetic biology moves toward increasingly ambitious forms of life. Could we create organisms isolated from the rest of nature? Can evolution overcome even our strongest genetic firewalls? And how close is modern genome engineering to becoming science fiction made real? 00:00 Introduction 01:16 Akos’s Path to Synthetic Biology 03:59 Engineering the Genetic Code 05:45 Three Goals for Synthetic Biology 09:16 Controlling Horizontal Gene Transfer 11:11 Building a Genetic Firewall 13:39 Toxicity of Recoded tRNAs 14:26 Drug Delivery and Bioremediation 16:22 Solving the Fitness Problem 18:35 Measuring Real Biological Fitness 20:13 Testing Virus Resistance 23:37 Why the Genetic Code Is Universal 26:42 From Recoding to Applications 28:52 Debugging Genomes With Multiomics 31:15 Hidden Bugs in Genome Design 35:33 AI for Genome Design 37:51 Can LLMs Recode Genomes? 40:06 Building Local AI Compute 42:18 Cloud Labs and CROs 45:52 From Lab to Commercial Use 47:26 Translational Research and IP 48:44 Expanding Biology’s Chemical Alphabet 49:59 Ethics, Biosafety, and Regulation 53:23 The Risks of Mirror Life 57:37 When Science Fiction Becomes Real 58:33 Closing and Hiring Announcement