55. Adrian Woolfson: Writing Life From Scratch

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DNA is a language. Only four letters, ACGT, and every living thing is a sentence written with them. For four billion years, only evolution held the pen. Slow, clumsy, with no plan at all.

Lately, we got good at reading that language. CRISPR lets us fix a typo here and there. But my guest today wants to do something bigger. He wants to write whole new sentences. New books, even. From a blank page.

Adrian Woolfson is a doctor trained in Oxford, an author, and the founder of Genyro, a company building the tools to design and print full genomes. He just published a book about it, called On the Future of Species. I wanted to know what it actually means to become an author of life, so I asked him.

From Reading DNA to Writing It

Most of us know, roughly, what DNA is. The instruction manual tucked inside every cell of our bodies. But Adrian's work lives one level up, at the level of the genome, the entire book those instructions are written in.

"Think about DNA as just another language," he told me. "No different to Spanish or English or French, but the alphabet comprises just four letters, four chemicals, ACGT. English has 26 letters, and all of the sentences in English literature are combinations of those 26 letters. In the same way, in the language of life, the alphabet comprises four letters."

And the genome? That's not a sentence or a page. It's the whole story.

"Think of a genome as being the whole story. Instead of a page of Gabriel Garcia Marquez, it's the whole One Hundred Years of Solitude. It's the whole book, the whole story."

Up until now, our best tool for touching that story has been CRISPR. But Adrian draws a sharp line between editing and authoring. "CRISPR just edits what evolution has given you. And that's very, very constraining. But imagine if you could actually imagine what life could be like, and then make it happen. That's a pretty formidable power."

The Library of Life That Was Never Read

Here's the part of the conversation that stuck with me the most. Adrian describes all possible genetic combinations as an infinite library, and most of it has never been touched. Every species that has ever existed, from the hen to the potato to the tomato, is just one book pulled off that shelf. Everything else is still sitting there, unread.

"Most possible life has never existed," he said. "The life that does exist or once existed but is now extinct is just the tiniest grain of sand in a universe of possible life."

He used the dodo as an example. The dodo went extinct because sailors introduced pigs to Mauritius, and the pigs ate the eggs. But the dodo's genome, the information itself, never disappeared. "We know that the genome that makes a dodo, the sequence, the information, has a timeless existence. It will always be there."

That idea, that information is more permanent than the body carrying it, is one Mizter Rad Show listeners have run into before. It's close to the territory James Glattfelder explored when we talked about consciousness and the deeper structures underneath physical reality. If you haven't listened to that episode yet, it pairs beautifully with this one.

Feeding the World, Storing the Internet, Fixing the Ocean

So why write new genomes at all? Adrian gave me a list of problems that today feel almost impossible, and tomorrow might just be engineering.

Feeding a growing population without destroying what's left of the wild. "Imagine if you could grow food more efficiently and in places that are inhospitable, like deserts." Turning seawater into drinking water using engineered bacteria. Storing massive amounts of data inside DNA instead of energy-hungry server farms, since, in his words, "ten to twenty percent of the earth's energy is going to be used to support AI." Even producing bioenergy far more efficient than anything evolution ever stumbled into.

None of this is about replacing nature, though. Adrian was firm on that point, and it surprised me. "For me, nature is sacred. We have to value nature. It's come down over four billion years. It's something really essential to who we are as humans." His hope is that synthetic biology lets us stop destroying wild ecosystems by giving us better tools than farmland and fossil fuels, tools built from biology instead of against it.

This is the same tension we explored with Andrew Hessel, when he described building a biological backup of the human body using synthetic DNA. Both conversations circle the same question from different angles: if biology becomes programmable, what do we owe the natural world we're copying from?

The Lines He Won't Cross

Every powerful tool needs guardrails, and Adrian has thought about his more carefully than most. He compared humanity's current relationship with this technology to "three year old kids who've been given a key to a Ferrari."

His personal red lines are specific. Nothing heritable in humans, meaning nothing that gets passed on to future generations, at least not yet. "We don't understand things well enough. It's not fair on a future people that we do that." And any intervention in humans today should be aimed at treating illness, not radically rewriting what a human being is. A modest boost to longevity, sure. Adding centuries to a human life, not yet. "What if you could extend it by hundreds? What would that actually mean for human society, for human nature? Would we still be human as we know it?"

Could We Bring Back a Neanderthal?

Then the conversation went somewhere I did not expect. Adrian has previously argued that we should never write the genome of an extinct human species, like a Neanderthal. He changed his mind.

"I initially wrote under no circumstances should we ever try to write the genomes of extinct human beings. I subsequently revised it." His reasoning: several human species once lived on Earth at the same time, the same way pigeons, ostriches, and flamingos coexist today. "Wouldn't the Neanderthals have been nicer than us? Would they have had a greater sense of ethics and morality? We don't know."

He's not advocating for it. He's simply saying he couldn't find a solid argument to rule it out entirely. As he put it, raising a Neanderthal without biological parents is really no different from a child raised through IVF with a donor. "That's no different."

Beyond the Genetic Code

I pushed Adrian on something that had been on my mind. Learning a language's grammar is one thing. Living inside a culture, picking up the gestures and idioms that only come from being there, is another. Is there a layer of life we can't write into a genome?

"There's development, learning, culture, microbiome, environment. The genome is the foundation," he said. In his analogy, biology hands you the architecture of the building, the shape and number of the rooms. Culture and environment are what furnish it. "We can make a dodo. What we couldn't make is a historical dodo, because they developed their own cry, their own behavior."

Two Futures, Side by Side

I asked Adrian the question I ask almost every guest on this show. Are we heading toward two futures that split apart, one embracing designed biology and transhuman possibility, the other retreating back to something more natural and spiritual?

His answer was honest, and a little unexpected coming from a man building the technology to rewrite species. "I kind of like humans the way they are. They're tried and tested, they're kind of amusing, they're imperfect, they're paradoxical, they're unpredictable. And they're kind of lovable because of that."

But he left the door open to a harder truth. "Will we be able to compete with AI? I don't know. Maybe there's a necessity for us to use this to upgrade. It's not something I believe, but there is an argument."

We are, in his words, time travelers now. Able to reach backward into extinct genomes and forward into ones that have never existed. The tools are here. The instruction manual is still being written. And the question Adrian leaves us with isn't really about biology at all. It's about what kind of species we choose to be while we hold the pen.

‍ _____

This article was produced with the assistance of AI tools. The Mizter Rad Show is hosted by Mizter Rad.‍ ‍

Guest: Adrian Woolfson, Founder of Genyro. Author of “On the Future of Species”.

Follow Adrian on LinkedIn.

Listen to the full conversation with Adrian on the Mizter Rad Show.

‍Stay curious, question everything, and maybe just maybe… the most sophisticated machine ever built is not the one in the cage, it's the one reading this sentence right now.

Mizter Rad

 
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54. When AI Gets a Body: The Opportunities of Physical AI