Top Tech Voices Podcast S2 E3: Neuro-Tech and Brain Interfaces

I knew we were living in a science fiction world  the moment I first  saw robot dogs.   So an IP number for each brain.  Why not?

When this episode started, I thought the discussion was a bit too abstract; conceptual at a level well above usefulness.  "Do we all see the same color green?"  When they finally got to the brain computer interfaces, the content became much more real.  It somewhat validated the early discourse.  I was very impressed with Professor Seth's humanity.  He studies conscious with a conscience.  I like that he isn't so enamored with his research that he can't see potential negative applications.

He did set a mental sticky bomb for me though.  Echo chambers.  Echo chambers amplify polarization.  It's a positive feedback loop.  We have identified the problem that is creating stress in our society and culture.  How do you fix it?  Censorship isn't the right answer.  People don't want to be manipulated - and yet we are.  I liked his take on the dress illusion/interpretation as a way to possibly open people's minds that others might not see things as you do.  What is the next step?  I don't know.  I'd like to get back to just being a geek.

Did anyone else think of Yondu from Guardians of the Galaxy?  Yeah, he whistles - but you know there's some BCI action going on there somewhere.

The discussion between Ms. Anderson and Dr. Seth was very fascinating. They touched upon so many interesting subtopics of our brain and thoughts that my mind is still reeling. Maybe it is a little dark, but I always thought what a cruel experiment it would be to raise a child in total isolation teaching him/her a completely wrong presentation of the physical world, as we know it. Say we called something red, when it is blue or hot when cold. But maybe that is why the world seems to be so messed up now.

Some observations:
NOTE: For what it’s worth, my observations are based on my conscience and unconscious experiences therefore probably all messed up.

- As mentioned by Dr. Seth, our mind and thoughts are often limited when we hang out in an “echo” chamber, which we often bring about through our social media addiction.

- Mediation can work in both a negative and positive influence if you limit external communication.

- It was mentioned that evidence is often needed to test our thoughts and we have a tendency to pick a test to support them. In the real world we call these “white” or “grey” box tests since we already have some idea as to what we expect to happen. A better solution might be a “black” box test, assuming we know very little about the environment.

- I like the model of brain as an analog computer. Where does “fuzzy” logic come in?

Two last questions (for now):
- As brain implants become more evasive, how to we deal with faults?

- I can see an implant needing a firmware upgrade. How secure do wireless upgrades need to be, so a person isn’t hacked?

Finally, I hope Dr. Seth will not take any offense, but in the promo for the series, his picture makes him look like a character from Harry Potter. I’m glad the video did him better justice. Must be my subconscious speaking.

I genuinely loved this episode but let me start with the thing that got me more than anything else. The moment Prof. Seth mentions they did a study with 40,000 people just to figure out whether we all see colours the same way. 40,000 people. For a question I would have just shrugged off with "who knows". That quietly blew my mind more than all the sci fi brain implant stuff honestly.

Because it made me think about every argument I have ever had where I was absolutely certain the other person was just being stubborn. What if they were genuinely seeing something different and had no way to explain it, same as I had no way to explain it to them.

Also I feel like nobody is talking about the mental monoculture point he sneaks in near the end. The idea that people might literally have to train themselves to think in a specific way just to make BCI technology work, and only people who can afford the expensive version get to keep thinking however they want. That one has been sitting with me all day.

Here's my feedback on this podcast,

1.The meditation and attention stuff kept getting touched on and then dropped and I kept wishing it would go somewhere. There is clearly so much there. I would love a whole episode on just that, maybe with someone who specifically studies the neuroscience of meditation.

2.The ethics side of BCIs also felt like it needed way more room. I could see Prof. Seth had so much more to say about neural bycatch and privacy and mental monoculture but because there was so much ground to cover it all got a bit rushed.

3.One small format thing I noticed. There were a few moments where four or five questions got asked at once and some really interesting threads like the free will discussion and the analog brain point at the end felt like they were just getting good when the topic switched. I would personally love to see each idea get more space to breathe.

veluv01 said:

3.One small format thing I noticed. There were a few moments where four or five questions got asked at once and some really interesting threads like the free will discussion and the analog brain point at the end felt like they were just getting good when the topic switched. I would personally love to see each idea get more space to breathe.

fully agree, topics switched too often.

Just found this Neuralink update about Kenneth and had to share it here. A man with ALS thinking words silently in his head and hearing them played back in his own voice from years ago. Everything Prof. Seth was talking about in this episode about the BCI suddenly becomes very real when we can see it actually happening to a real person.

The concept of free will has always fascinated me since in college during one of the lectures of my professor he explained why there is no such thing as free will. This concept is still widely discussed in the neuroscience community. Seth defined free will not as an absolute control over actions but as a perception. This nuanced view highlights that free will is an experience generated by our brain’s interpretation of actions rather than an external spiritual phenomenon. When relating this to AI, I am asking myself: can AI ever possess free will if it fundamentally operates on deterministic algorithms and data-driven responses? Unlike humans, whose brains actively construct a sense of agency and intention, AI systems function based on programming and learned patterns without subjective experience. Therefore, even if AI were to simulate decision-making processes resembling free will, it likely would not embody the conscious experience of free will as humans do. This invites a deeper discussion into what it means for AI to have agency and how consciousness and free will might be exclusive to biological systems or if future AI architectures might evolve novel forms of agency distinct from human free will.

The episode very interestingly illustrates how complex and counterintuitive the phenomenon of consciousness is, especially in the context of neurotechnology. The concept of “controlled hallucination” was particularly intriguing, as it challenges our assumption that we perceive the world objectively. This ties in well with the example of the “dress” (blue/black vs. white/gold), showing how different our perceptions can be—and how difficult it is to accept someone else’s point of view.

It’s also worth appreciating the thread on mindfulness and meditation as ways to train attention. In a world full of stimuli, this is a very practical suggestion that could be developed further—for example, with specific techniques or examples of daily-life applications.

The discussion about free will was also very interesting. The approach that free will may be more of an experience or a “perception of agency,” rather than an absolute, independent force controlling our decisions, provides a fresh perspective on responsibility and human behavior. This is particularly important in the context of law, ethics, and technological development—for example, if our decisions are partially the result of processes we do not consciously control, how should we evaluate human actions? This topic definitely deserves further exploration in future episodes.

The section on brain–computer interfaces (BCIs) was fascinating but also somewhat unsettling. It highlights the enormous potential of the technology in medicine, but also raises questions about thought privacy and possible abuses, for example in marketing or information manipulation. This is a topic worth deepening in future episodes, perhaps with input from ethics or law experts.

BCIs have the potential to read brain activity much more directly than traditional surveys or eye-tracking cameras. This means they could reveal not only conscious decisions but also emotions, intentions, and memories.

However, significant ethical questions arise:

Who will have access to such data?
How can we ensure it is not used for manipulation, e.g., in advertising or politics?
How can privacy be protected for commercial devices available to ordinary users?

If decisions can be partially modulated by a BCI—for example, in games, creative work, or machine control—the question of responsibility arises. Is a person fully accountable for their actions if some decisions result from indirect manipulation of brain signals?

BCIs also have the potential to revolutionize medicine (e.g., in cases of paralysis or neurodegenerative diseases), but if access to advanced technology is economically restricted, it could deepen social inequalities.

Currently, an increasing number of ready-made EEG kits or microcontrollers allow amateurs to build their own home brain–computer interfaces. On one hand, this is fascinating and could accelerate innovation in education and hobbies.
On the other hand, easily accessible BCIs increase the risk of experimentation without proper safeguards, potentially leading to unintended neurological effects. 

From an ethical perspective, the lack of regulation is problematic: who is responsible if a “home BCI project” is used in a way harmful to the user or third parties?

It’s a bit like “3D printing for the brain”: tools are becoming easier to use, which is incredibly exciting, but also dangerous if not accompanied by responsible education and regulation. The ability for amateurs to experiment with BCIs opens the door to creative projects, but it also means that ethics and safety should be an integral part of every project.

As feedback: the episode is very inspiring, but at times quite abstract—adding more concrete examples of technology applications or brief summaries of key ideas could make it more accessible to a wider audience.

Just letting everyone know that the latest Top Tech Voices episode is available to watch here. Check it out for a discussion of biohacking as well as another competition, this time with an Arduino Uno Q as the prize.

Looking forward to announcing Episode 3's winners this Friday :)

A big congratulations to our winners of this episode's competition!

• dang74 
• dougw 
• gpolder 
• jelektro 
• MarioPJ98 

 E14Alice will be in touch to arrange the shipment of the prizes