Mark Changizi

This stuff is completely invisible if you're colorblind, if you're a colorblind doctor, even going back to Dalton. He had complained about his complete inability to see if someone had infected one eye versus the other. No idea. If they've got blood or stool on their pants, they can't tell the difference between whether it's blood or stool. These things go back for a long ways.

This stuff is completely invisible if you're colorblind, if you're a colorblind doctor, even going back to Dalton. He had complained about his complete inability to see if someone had infected one eye versus the other. No idea. If they've got blood or stool on their pants, they can't tell the difference between whether it's blood or stool. These things go back for a long ways.

This stuff is completely invisible if you're colorblind, if you're a colorblind doctor, even going back to Dalton. He had complained about his complete inability to see if someone had infected one eye versus the other. No idea. If they've got blood or stool on their pants, they can't tell the difference between whether it's blood or stool. These things go back for a long ways.

As soon as you're color deficient, you're missing one of those. Now it's just you can't distinguish these things at all.

As soon as you're color deficient, you're missing one of those. Now it's just you can't distinguish these things at all.

As soon as you're color deficient, you're missing one of those. Now it's just you can't distinguish these things at all.

We, that has been very hard to test because, but what we do know is that there's a long history of medical doctors who have known problems in just detecting blood state related diagnosis, symptoms that are recognizable by blood state.

We, that has been very hard to test because, but what we do know is that there's a long history of medical doctors who have known problems in just detecting blood state related diagnosis, symptoms that are recognizable by blood state.

We, that has been very hard to test because, but what we do know is that there's a long history of medical doctors who have known problems in just detecting blood state related diagnosis, symptoms that are recognizable by blood state.

But actually doing controlled experiments where you're able to do this with, it has been very hard. So no one has quite that data. There's a lot of, my dad's colorblind and he's emotionally dense.

But actually doing controlled experiments where you're able to do this with, it has been very hard. So no one has quite that data. There's a lot of, my dad's colorblind and he's emotionally dense.

But actually doing controlled experiments where you're able to do this with, it has been very hard. So no one has quite that data. There's a lot of, my dad's colorblind and he's emotionally dense.

Well, I mean, you can certainly mimic on screen, you could try to mimic the spectral difference in some sense so that... First of all, just to back up, one of the interesting side effects of this is that your camera doesn't show you color vision. Your TV doesn't show you color vision. All the cameras that we use are still in some sense to color vision because...

Well, I mean, you can certainly mimic on screen, you could try to mimic the spectral difference in some sense so that... First of all, just to back up, one of the interesting side effects of this is that your camera doesn't show you color vision. Your TV doesn't show you color vision. All the cameras that we use are still in some sense to color vision because...

Well, I mean, you can certainly mimic on screen, you could try to mimic the spectral difference in some sense so that... First of all, just to back up, one of the interesting side effects of this is that your camera doesn't show you color vision. Your TV doesn't show you color vision. All the cameras that we use are still in some sense to color vision because...

Their third receptivity is way out, you know, it's distributed way out there. So none of those cameras that we take these pictures of are able to sense these oxygenation modulations.

Their third receptivity is way out, you know, it's distributed way out there. So none of those cameras that we take these pictures of are able to sense these oxygenation modulations.

Their third receptivity is way out, you know, it's distributed way out there. So none of those cameras that we take these pictures of are able to sense these oxygenation modulations.

Yeah, so this is what makes it deeply difficult. It also means that literally we're not seeing all of the states that we experience in real life. The glow of youth, when you see glow of youth, you're talking about the glowing of oxygenated blood on the skin. None of that's available.

Yeah, so this is what makes it deeply difficult. It also means that literally we're not seeing all of the states that we experience in real life. The glow of youth, when you see glow of youth, you're talking about the glowing of oxygenated blood on the skin. None of that's available.