655: David Eagleman | How Our Brains Construct Reality

Sensory Devices

David Eagleman explores the fascinating world of sensory substitution, where technology enables the brain to perceive information through unconventional channels. He describes how devices like vests and grids for the tongue can allow the blind to "see" and the deaf to "hear" by translating sensory data into tactile experiences. This innovative approach suggests that the brain's perception is not limited to traditional senses, opening the door to entirely new sensory experiences.

If you're feeling the stock market data, and you try to explain to me, "Wow, I feel this, and it feels like this blah, blah," you could try and try and I'd never quite get what it is until I wear the stock market vest and experienced that for a month or so.

--- David Eagleman

Eagleman emphasizes the brain's ability to adapt to these new inputs, potentially creating senses that are completely alien to our current understanding 1 2.

   

Vest Tech

The sensory vest represents a groundbreaking advancement in wearable technology, offering auditory or visual substitutes for those with sensory impairments. David Eagleman explains that the vest can translate sound into vibrations on the torso, allowing deaf individuals to "hear" through their skin. This technology is not only applicable to hearing but also extends to aiding those with prosthetic limbs by providing feedback on limb position and movement.

The vest is probably our best bet for the next 50 years or something until we figure out better ways to get deeper in there and plug things directly into the brain.

--- David Eagleman

Eagleman highlights the vest's potential to seamlessly integrate into daily life, offering a discreet and effective solution for sensory substitution 3 4.

   

New Perception

Eagleman envisions a future where technology expands human perception beyond current limitations, creating entirely new senses. By integrating sensors that detect electromagnetic radiation or heat, individuals could perceive the world in ways previously unimaginable. This could lead to groundbreaking discoveries, such as identifying drinkable water from polluted sources using microwave sensors.

We're just now at this moment in history for the first time in billions of years, where we can suddenly feed in completely new senses to the brain.

--- David Eagleman

Eagleman suggests that these advancements could revolutionize fields like law enforcement and search and rescue, providing new tools for understanding and interacting with the environment 5 6.