Aug 20, 2026 · 31m · no-priors
From Restoring Sight to Reimagining the Brain, with Max Hodak
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Science CEO Max Hodak discusses how treating the brain as a physical computational system enables breakthrough neurotechnologies, detailing the European approval of the Prima retinal prosthesis alongside long-term visions for perfusion medicine, AI-neuroscience convergence, and conscious substrate independence.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. The hosts hold 16.4% of the talking time here. How this is scored →
The hosts as informed peer 4.9 Guest teaching 5.1 Guest disagreement 2.4 The hosts pushing back 2.0
speaking balance: gold is the hosts, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 10:09 Brain as a literal computer assertion
Hodak forcefully rejects objections to viewing the brain computationally, brushing off internet critics as bikeshedding and insisting the brain and universe are plainly computers.
Hardest push from the hosts ▶ 16:41 Guo brings up general anesthesia to challenge identity breakGuo pushes back against Hodak's dismissal of digital replication by presenting the gap in consciousness caused by general anesthesia as a direct counter-example.
Biggest teaching moment ▶ 3:03 Anatomical mapping of visual prosthesis interventionsHodak provides a structured technical explanation detailing why intervening at the retina is superior to stimulating the thalamic lateral geniculate nucleus or the primary visual cortex.
The host holds their own ▶ 20:05 Guo frames the Platonic Representation Hypothesis connectionGuo demonstrates deep familiarity with contemporary AI and neuroscience intersections, prompting Hodak to validate how latent geometries map between biological brains and artificial networks.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | The hosts as informed peer | Guest teaching | Guest disagreement | The hosts pushing back | Why |
|---|---|---|---|---|---|---|
| The Mission of Science and the Prima Retinal Prosthesis | 4 | 5 | 1 | 1 | Guo sets up foundational questions about Science's founding premise and form factors. Hodak provides a technical masterclass breaking down the anatomy of visual restoration across the retina, thalamus, and V1 cortex. | |
| European Regulatory Approval and Commercializing Moonshot Technologies | 5 | 6 | 3 | 2 | Guo touches on the Moonshot perception of BCI, which Hodak gently rejects by pointing out the literal historical success of the Moon landing. He contrasts biology's slow drug discovery with engineering interventions in motor cortex and retina. | |
| Clinical Trial Evidence and the Philosophy of the Brain as a Computer | 4 | 6 | 4 | 2 | Hodak takes a firm, contrarian stance on computationalism, stating that the brain plainly is a computer and dismissing internet objections as bikeshedding. Guo probes how clinicians and biotech investors react to his non-traditional tech framing. | |
| The BCI Landscape: Hand Substitutes Versus Redrawing Brain Boundaries | 5 | 5 | 3 | 2 | Hodak dismisses banal BCI use-cases like summoning an Uber with thought as mere hand substitutes. He reorients the discussion around the profound boundary between communication channels and redrawing the physical perimeter of the brain. | |
| Personal Identity, Digital Emulation, and Phenomenological Continuity | 6 | 5 | 3 | 4 | Guo challenges Hodak's thought experiment on software replication by bringing up general anesthesia and phenomenal continuity. Hodak clarifies his view on creation/annihilation operators and the critical requirement of unbroken phenomenological continuity. | |
| The Platonic Representation Hypothesis and AI-Driven Neuroscience | 6 | 4 | 2 | 2 | Guo brings up the Platonic Representation Hypothesis and the alignment between neural recordings and deep neural network latent spaces. Hodak confirms their internal empirical findings and notes why neuroscientists are migrating to studying AI models. | |
| Commercial Dynamics, Market Sizing, and Reimbursement for Vision Restoration | 5 | 4 | 1 | 1 | Guo prompts Hodak on business viability and target patient populations for retinal implants. Hodak details historical reimbursement benchmarks, citing Second Sight's pricing and high-cost gene therapies. | |
| Perfusion Medicine, the Skull as a Vat, and Lateral Healthspan Moves | 4 | 6 | 2 | 1 | Hodak details his philosophy that all bodily organs outside the brain are merely support characters and that the skull is already a biological vat. He outlines how perfusion medicine offers lateral moves around traditional disease treatments. | |
| Mitigating Human Fragility and Engineering Substrate Independence for Space | 5 | 5 | 3 | 3 | Guo challenges Hodak on whether internal thoughts exist in a high-bandwidth non-linguistic latent state. Hodak refutes this, citing the 10-bit-per-second cognitive bottleneck and dismissing silent-speech brain keyboards as inadequate compared to substrate independence. |
Statements from this episode (25)
Hodak: Science finished macular degeneration trial, planning studies for RP and Stargardt's
“Specifically this is diseases like macular degeneration, which our clinical trial was done and we're about to do studies in retinitis pigmentosa and Stargardt's and a couple of their diseases.”
Hodak: Science's in-house retinal gene therapy probably enters human trials next year
“What we ended up doing is we developed indigenously a state of the art gene therapy, which is probably going to humans next year.”
Hodak: Science secured European marketing approval for Prima retinal implant in July
“So it took us about two years for post acquisition to get it to the place where this was possible, but we just in July got marketing approval in Europe for Prima to start commercially selling it there.”
Hodak: First commercial sales of Prima retinal implant will happen in weeks
“The first sales will happen in the coming weeks.”
Hodak: Science Pipeline Covers Vision, Biohybrids, and Perfusion
“So there's three elements to our pipeline.
The first is our work in vision.
Second is our bio hybrid neural interfaces.
And the third is that our work in a different area of medicine perfusion, a program called vessel.”
Hodak: Science is the first to restore form vision in blind patients
“Nobody had previously ever been able to restore a form vision image in the mind's eye of a blind patient in this way.”
Hodak: Science Sees Path to Red and Green Color Vision
“We think we see a path to get at least red and green.
Blue is a little bit trickier.”
Hodak: Prima implant clinical trial patients read books and solved puzzles
“I mean, in the clinical trial, I mean, the main thing was just the existence proof of like that success was a possible outcome, right? Like that we had patients filling in Sudoku puzzles or crossword puzzles. There were patients that were reading books.”
Hodak: The brain and the universe are literally physical computers
“I mean, to me, I don't mean that metaphorically, like the brain very literally, very clearly, plainly is a computer in, in my understanding of the world. I also view the universe generally as a computer. Like we can solve pro like you can solve computational p…”
Hodak: Science mostly raised from tech VCs, only pitching Bob Nelson
“So we mostly raised from tech investors, not that much from biotech investors. In fact, there's only one VC that I sought out at all at the Series A that I went to go pitch, which was Bob Nelson, who's a biotech investor.”
Hodak: Treating BCI as one bet is like having one drug bet
“I think BCI is a category, kind of like how pharma is a category. I think sometimes you, I'll talk to VCs and like, oh, we have a BCI bet. Like, do you have a drug bet? You made one bet on a drugs? Like, that's that, that's how you think about the category.”
Hodak: Vision, hearing, balance, and 1 kbps motor control unlock radical neurotech
“If you can, if you get vision, hearing, balance, and a kilobit per second of motor control, you're halfway to the matrix. And this takes you into some like really trippy interpret reinterpretations of medicine.”
Hodak: Most people will not accept digital brain replicas as survival
“If I could make a copy of you, and you can talk to that copy, and you're like, okay, I will go away now. I just don't think that many people are going to be like, this is it.”
Hodak: Science Is Not Far From Completing a Mouse Connectome
“We're still relatively far from a human connectome, but I think we're not that far from a mouse connectome.”
Hodak: Science aligns animal brain recordings with AI model representations
“We use that constructively at science like that. So we know that that is. That is true because we can get alignments between animal brain neural recordings and AI model internal representations.”
Hodak: The most fertile path for neuroscience is working on AI
“Well, I mean, ironically, it's probably working on AI. Yeah, I have some, I have a couple of neuroscience friends at OpenAI and Anthropic, who, it's like, we would joke, like, oh, you left neuroscience. Like, no, no, no. It is just way easier to do neuroscienc…”
Hodak: Second Sight's retinal implant received $150,000 per patient in reimbursement
“Second site, 10 years ago, they, so there's a company about a decade ago that had a retinal prosthesis that works differently than ours does. It did not get the type of performance that Prima does, but was Briefly approved. Cause then there's really nothing fo…”
Hodak: Vision gene therapy reimburses at nearly $500,000 per eye
“In the mid-twenty-tens, there's a gene therapy that works, that is only relevant in the first place for about five percent of patients in one narrow indication. And it really doesn't work that well. It gets .one lines of improvement. It kind of slows the rate …”
Hodak: Next-generation Prima implant will expand addressable market to millions
“The TAM will grow over time for this first version. It's on the scale of like hundreds of thousands of patients in the U S and Europe. So for the current version of Freeman is probably hundreds of thousands of patients. And then the next version, which is Goin…”
Hodak: BCIs and perfusion medicine can significantly improve healthspan
“Through a mix of the BCIs that allow you to kind of change the system, the thing that it's interacting with and our perfusion medicine program we think that there's ways to significantly improve not just lifespan, but healthspan and kind of create a better qua…”
Hodak: Cardiovascular disease and non-brain cancer are attackable via organ replacement
“The two leading causes of death though, are cardiovascular disease and cancer is not metastasized to the brain. And I think both of those are going to be really attackable through this type of work.”
Hodak: Long-term space exploration requires adapting human bodies rather than exporting Earth
“If we are serious about exploring the universe and going to the stars, we are going to have to adapt ourselves to that environment. We're not going to export earth with us everywhere we go. And these bodies are great, but they're designed for this planet.”
Hodak: Brain-computer interfaces will probably not make thinking faster
“I think that talking or writing is thinking. I think this idea that there's the stuff that's just this kind of preformed in your brain, that if you could access it through BCI, it would be faster is probably not. Not the case.”
Hodak: The human brain has an evolved 10-bit-per-second cognitive bottleneck
“There's this, like, 10 bit per second kind of famous, like, cognitive bottleneck. There's this observation that the brain seems to process information, like, if there's a bunch of ways you can triangulate this, you can put somebody with, A perfect memory on a …”