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Bliss Chapman

👤 Person
888 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

you would have 150 micron wavefront at 10 megahertz and building electronics at those frequencies are much, much easier and they're a lot more efficient. So the basic idea kind of was born out of using ultrasound as a mechanism for powering the device and then also getting data back. So now the question is, how do you get the data back?

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

you would have 150 micron wavefront at 10 megahertz and building electronics at those frequencies are much, much easier and they're a lot more efficient. So the basic idea kind of was born out of using ultrasound as a mechanism for powering the device and then also getting data back. So now the question is, how do you get the data back?

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

The mechanism to which we landed on is what's called backscattering. This is actually something that is very common and that we interface on a day-to-day basis with our RFID cards, our radio frequency ID tags, where There's actually rarely in your ID a battery inside. There's an antenna and there's some sort of coil that has your serial identification ID.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

The mechanism to which we landed on is what's called backscattering. This is actually something that is very common and that we interface on a day-to-day basis with our RFID cards, our radio frequency ID tags, where There's actually rarely in your ID a battery inside. There's an antenna and there's some sort of coil that has your serial identification ID.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

The mechanism to which we landed on is what's called backscattering. This is actually something that is very common and that we interface on a day-to-day basis with our RFID cards, our radio frequency ID tags, where There's actually rarely in your ID a battery inside. There's an antenna and there's some sort of coil that has your serial identification ID.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

And then there's an external device called a reader that then sends a wavefront. And then you reflect back that wavefront with some sort of modulation that's unique to your ID. That's what's called backscattering fundamentally. So the tag itself actually doesn't have to consume that much energy. And that was a mechanism to which we were kind of thinking about sending the data back.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

And then there's an external device called a reader that then sends a wavefront. And then you reflect back that wavefront with some sort of modulation that's unique to your ID. That's what's called backscattering fundamentally. So the tag itself actually doesn't have to consume that much energy. And that was a mechanism to which we were kind of thinking about sending the data back.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

And then there's an external device called a reader that then sends a wavefront. And then you reflect back that wavefront with some sort of modulation that's unique to your ID. That's what's called backscattering fundamentally. So the tag itself actually doesn't have to consume that much energy. And that was a mechanism to which we were kind of thinking about sending the data back.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

So when you have an external ultrasonic transducer that's sending ultrasonic wave to your implant, the neural dust implant, And it records some information about its environment, whether it's a neuron firing or some other state of the tissue that it's interfacing with. And then it just amplitude modulates the wavefront that comes back to the source.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

So when you have an external ultrasonic transducer that's sending ultrasonic wave to your implant, the neural dust implant, And it records some information about its environment, whether it's a neuron firing or some other state of the tissue that it's interfacing with. And then it just amplitude modulates the wavefront that comes back to the source.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

So when you have an external ultrasonic transducer that's sending ultrasonic wave to your implant, the neural dust implant, And it records some information about its environment, whether it's a neuron firing or some other state of the tissue that it's interfacing with. And then it just amplitude modulates the wavefront that comes back to the source.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

Correct. So it is that initial kind of startup circuitry to get that recording, amplifying it, and then just modulating. And the mechanism to which that you can enable that is there is this specialized crystal called piezoelectric crystals that are able to convert sound energy into electrical energy and vice versa.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

Correct. So it is that initial kind of startup circuitry to get that recording, amplifying it, and then just modulating. And the mechanism to which that you can enable that is there is this specialized crystal called piezoelectric crystals that are able to convert sound energy into electrical energy and vice versa.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

Correct. So it is that initial kind of startup circuitry to get that recording, amplifying it, and then just modulating. And the mechanism to which that you can enable that is there is this specialized crystal called piezoelectric crystals that are able to convert sound energy into electrical energy and vice versa.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

So you can kind of have this interplay between the ultrasonic domain and electrical domain that is the biological tissue.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

So you can kind of have this interplay between the ultrasonic domain and electrical domain that is the biological tissue.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

So you can kind of have this interplay between the ultrasonic domain and electrical domain that is the biological tissue.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

I think a good starting point is going back to 1790s. I did not expect that. Where the concept of animal electricity or the fact that body's electric was first discovered by Luigi Galvani, where he had this famous experiment where he connected set of electrodes to a frog leg and ran current through it. And then it started twitching and he said, Oh my goodness, body's electric.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

I think a good starting point is going back to 1790s. I did not expect that. Where the concept of animal electricity or the fact that body's electric was first discovered by Luigi Galvani, where he had this famous experiment where he connected set of electrodes to a frog leg and ran current through it. And then it started twitching and he said, Oh my goodness, body's electric.

Lex Fridman Podcast
#438 – Elon Musk: Neuralink and the Future of Humanity

I think a good starting point is going back to 1790s. I did not expect that. Where the concept of animal electricity or the fact that body's electric was first discovered by Luigi Galvani, where he had this famous experiment where he connected set of electrodes to a frog leg and ran current through it. And then it started twitching and he said, Oh my goodness, body's electric.