The Michael Shermer Show

The Future of Brain Implants: Restoring Speech, Regaining Mobility, Treating Pain

December 23, 2025

Key Takeaways Copied to clipboard!

  • Paradromics' Brain-Computer Interface (BCI) platform has achieved the world's highest data rate at 200 bits per second, significantly surpassing competitors like Neuralink, which is crucial because progress in neuroscience is currently limited by data transfer speed, not biology. 
  • Invasive BCI implantation surgery, while sounding scary, can be empirically less invasive than long-term drug treatments like strong opiates, challenging common intuition about medical invasiveness. 
  • The immediate clinical focus for high-data-rate BCIs is restoring function, such as speech decoding, by mapping neural activity to intended language, with commercial approval targeted for the 2030s, while more complex biological regeneration remains a longer-term goal. 
  • The intuitive feeling that a neuron-by-neuron brain map is 'more like them' contrasts with the less compelling idea of an uploaded consciousness based only on external behavioral modeling. 
  • The discussion touches upon philosophical thought experiments regarding consciousness and identity, drawing parallels between brain uploading and the simulation hypothesis, noting the uncertainty in calculating probabilities like the 51% chance of living in a matrix. 
  • The conversation concludes with Michael Shermer thanking Dr. Matt Angle for his important work on brain implants, hoping the technology advances before the boomer generation faces significant health decline. 

Segments

BCI Data Rate and Neural Speed
Copied to clipboard!
(00:01:00)
  • Key Takeaway: A single cortical module can transfer 200 bits per second, which is the highest BCI data rate globally and approximately 20 times faster than Neuralink.
  • Summary: Neurons operate millions of times slower than gigahertz processors, necessitating high-volume parallel communication to transfer significant information. The company’s cortical module achieves 200 bits per second, establishing a new benchmark for data transfer rates in brain-computer interfaces. This high data rate is essential for unlocking advanced capabilities beyond current BCI applications.
Invasiveness of Medical Treatments
Copied to clipboard!
(00:01:43)
  • Key Takeaway: Intuition about medical invasiveness can be misleading, as long-term use of strong opiates is empirically more invasive than receiving a brain implant like a deep brain stimulator.
  • Summary: While brain implants sound frightening, taking strong, long-term medication can carry greater systemic risks. The comparison highlights that the invasiveness of a treatment should be judged by its empirical impact rather than just the procedure required to administer it. This perspective is relevant when considering chronic pain management alternatives.
Dr. Angle’s Background and Company Genesis
Copied to clipboard!
(00:02:11)
  • Key Takeaway: Paradromics was founded in 2015, initially to secure NIH funding, and gained significant traction after winning a competitive Department of Defense contract in 2017.
  • Summary: Dr. Angle’s interest shifted from basic neuroscience to developing tools that enable new research questions, leading him to focus on scaling neural recording technology. The company’s early success was bolstered by Department of Defense funding aimed at restoring function after injury. Paradromics formalized its medical device focus after moving to Austin around 2018-2019.
Decoding Intent: Speech and Motor Cortex
Copied to clipboard!
(00:08:53)
  • Key Takeaway: Speech restoration involves training a machine learning decoder to map action potentials from motor cortex activity—even when attempting speech that cannot be vocalized—to intended sentences.
  • Summary: The brain’s substrate for experience is the propagation of action potentials across simple, massively parallel neurons. By reading these firings in areas like the motor cortex, algorithms can predict what a paralyzed person is trying to say. This process is currently being tested in clinical trials at institutions like Stanford and UC Davis.
Implant Placement and Neural Plasticity
Copied to clipboard!
(00:13:09)
  • Key Takeaway: The 10mm diameter implant uses hair-sized electrodes inserted 1.5mm deep, and while placement requires precision guided by fMRI, the brain’s plasticity allows for successful decoding even if the device is slightly misplaced.
  • Summary: The procedure involves placing the device on the brain surface with electrodes penetrating slightly, comparable to epilepsy monitoring surgeries. Pre-operative fMRI helps localize the target area, but the decoding algorithm handles the final mapping of specific neuron signals. The brain’s remarkable plasticity means functionality can be achieved even if the implant is located outside the primary target area, such as decoding speech from the hand area.
BCI Applications Beyond Motor Control
Copied to clipboard!
(00:19:28)
  • Key Takeaway: A major commercial and healthcare win for BCI will be objectively reading cognitive and mood states, such as pain levels, transforming mental health treatment similarly to how CGMs changed diabetes management.
  • Summary: BCIs can provide objective readouts of subjective states like mood and pain, overcoming the limitations of subjective 1-to-10 pain scales. This objective data allows for precise, real-time modulation of neurostimulators or personalized drug dosing recommendations. This capability promises to radically improve the efficacy and speed of treating mental health conditions.
Paralysis Treatment Strategy
Copied to clipboard!
(00:23:43)
  • Key Takeaway: While biological regrowth of the spinal cord is a generational project, BCI offers a faster path to restoring function by connecting the brain to rapidly iterating external technology like exoskeletons.
  • Summary: Engineering solutions, like connecting the brain to robotics, can advance much faster than fundamental biological discoveries regarding axon regrowth. High-data-rate BCIs enable embodied control over external devices, allowing paralyzed individuals to regain movement through technology that iterates at the speed of engineering. This approach bypasses the current biological limitations of spinal cord repair.
Paradromics’ Preclinical Testing and Timeline
Copied to clipboard!
(00:37:09)
  • Key Takeaway: Paradromics is currently testing its device safety and speed in sheep with implants in the auditory cortex, aiming for commercial approval for speech restoration applications by 2030.
  • Summary: Preclinical testing involves playing complex sounds to sheep while recording neural activity to benchmark the device’s information transfer rate. The company has determined its system transfers 200 bits per second, significantly faster than competitors. The first human clinical trial, focused on restoring speech, is scheduled for Q1 of the following year.
Future Trajectory: AR/VR and Augmentation
Copied to clipboard!
(00:43:42)
  • Key Takeaway: As BCI data rates increase, the technology will inevitably lead to the ultimate Augmented/Virtual Reality experience by creating visual and auditory prosthetics indistinguishable from natural senses.
  • Summary: Once visual prosthetics achieve 20/20 vision quality, BCI-provided images will merge seamlessly with reality, enabling immersive experiences like viewing ancient sites with real-time historical context. This development is considered trivial software engineering once high-performance visual and auditory prosthetics are achieved. The field is moving toward these augmentative applications, driven by significant investment.
Ethical Alignment and Business Models
Copied to clipboard!
(00:47:32)
  • Key Takeaway: While augmentative BCI applications raise ethical concerns, the current medical focus on high-need patients creates positive externalities, and subscription models may be necessary to fund long-term device support and software updates.
  • Summary: The pursuit of advanced augmented reality platforms is currently curing blindness and deafness as positive side effects for vulnerable populations. The FDA’s neurological device group is viewed positively by the company for being scientifically thoughtful and impact-oriented. Recurring revenue models, while potentially unpopular, could prevent device abandonment by ensuring ongoing software maintenance.
Behavioral Modeling vs. Uploading
Copied to clipboard!
(01:03:34)
  • Key Takeaway: A purely behavioral model, even if perfectly recorded from birth, is insufficient to equate to the original person.
  • Summary: Building a robust behavioral predictor by recording all external inputs and outputs might suffice for an ‘online version’ that acts like the person. However, this simulation does not feel like the original individual to most people. Mapping the brain neuron by neuron, while perhaps not rationally correct, subjectively feels more like retaining identity than external behavioral replication.
Philosophical Thought Experiments
Copied to clipboard!
(01:04:04)
  • Key Takeaway: Thought experiments concerning consciousness and identity often lead to philosophically absurd conclusions, such as the high probability of living in a simulation.
  • Summary: These deep thought experiments can lead down ridiculous pathways, such as the Bayesian probability argument suggesting a greater than 51% chance of living in a matrix. This probability is based on the Copernican principle, assuming we are not the first civilization, and extrapolating current technological progress (Moore’s Law) over vast timescales. The sensitivity analysis for such probabilities involves many unknown parameters, similar to the Drake equation.
Conclusion and Gratitude
Copied to clipboard!
(01:04:53)
  • Key Takeaway: Michael Shermer expressed appreciation for Dr. Matt Angle’s work on brain implants, emphasizing its importance for the aging population.
  • Summary: The host thanked Dr. Angle for his important work, specifically hoping the neurotechnology advances quickly enough to benefit the boomer generation before they face severe health issues. Dr. Angle expressed gratitude for being hosted on The Michael Shermer Show.
Atlanta Volleyball Promotion
Copied to clipboard!
(01:05:05)
  • Key Takeaway: Love Atlanta Volleyball is promoting its upcoming season starting in January 2026, featuring top players like Tia Jimerson.
  • Summary: Love Atlanta volleyball is gearing up for its new season, featuring world-class players and local talent like Tia Jimerson. Tickets start at $15, and fans can find more information at LLVBATL.com/iHeart. The new season is scheduled to begin in January 2026.