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Is my blue your blue? (2024)

ismy.blue

41–50 of 483 posts

Re: Is my blue your blue? (2024)

#41

I think there's an anchoring effect in play here. If you select blue -> blue -> green -> blue -> green -> blue -> green…, you land at the population median. (The point being that, once you get to a somewhat ambiguous point (after two blue selections), you can say "oh, well, compared to the last one this is {opposite color}!", and it seems most people do that.)

it's a binary search, not too surprising. search over a unidimensional ordered space

Re: Is my blue your blue? (2024)

#42

I think the alternative should be "this is not blue". I was served what I would call a "teal" or "turquoise" but the alternative button shows "this is green", which it was not.

100%. It's like being asked is this black or white and being shown 50% grey.

That’s the point of this. To find out where in that spectrum your vision lands, not to get a perfect score.

Re: Is my blue your blue? (2024)

#44

One thing that I find interesting when thinking about colour perception, is that even if two people agree that a given colour is red, there is no way to know (as far as I am aware) that they actually perceive it in the same way. Maybe the brain of one person paints it red, and another paints it differently, and there is no way to know as we can't get into other people's heads.

Quite right: https://en.wikipedia.org/wiki/Qualia

Re: Is my blue your blue? (2024)

#45

I think the alternative should be "this is not blue". I was served what I would call a "teal" or "turquoise" but the alternative button shows "this is green", which it was not.

100%. It's like being asked is this black or white and being shown 50% grey.

Yeah, but is the gray to you more look more black or more white? That's the point.

Re: Is my blue your blue? (2024)

#46
post #13
post #9

Who else tried with both eyes? A few years ago I had an implant to treat cataracts. It was notable at the time that the "new" eye was less yellow-tinted than the aged-in-place eye. I was told that the lens does yellow with age. Over time, my brain mostly adjusted, but on this test I did notice a subtle hue difference between eyes. Did anyone else try that experiment?

Can you accommodate with the implant?

No. I got it set for distance vision. There are modern implants that are "multi-focal". But they work by spreading out the light, so everything is less bright at any distance. My two pieces of anecdata are: 1. A friend with multi-focal implants says that he needs a very bright light for reading now. Which is one of the reasons I avoided multi-focal. 2. My optometrist got multi-focal, and he noted that it required retraining his brain somewhat, because now instead of accommodation providing focus, focus requires mental attention to the subject of interest.

Cataract implant technology is moving very fast, and my data is about 5 years old, so YMMV.

Re: Is my blue your blue? (2024)

#47

The other week my wife and I were disagreeing over whether a house was green or blue. I was shocked when every passerby we asked agreed with her that it was green. I was absolutely 100% sure it was blue. Turns out according to this site, my boundary is greener than 95% of the population! Funny to see this proved out here!

I am bluer than 78%. Colors. How do they work.

Re: Is my blue your blue? (2024)

#48

I think this site is doing a binary search, so that you narrow down on a boundary. It would be much funnier, and also more insightful, if it didn't do this and let you contradict yourself.

Yeah, as I was toggling "blue" / "green" / "blue" / "green" I had the distinct sensation that it might just show me that I was in a region where I couldn't even make a consistent distinction.

Re: Is my blue your blue? (2024)

#49

One thing that I find interesting when thinking about colour perception, is that even if two people agree that a given colour is red, there is no way to know (as far as I am aware) that they actually perceive it in the same way. Maybe the brain of one person paints it red, and another paints it differently, and there is no way to know as we can't get into other people's heads.

yep, this is the sort of question I pose to my kids. “How can you know that what you see as blue is not what I see as red?”

Re: Is my blue your blue? (2024)

#50

One thing that I find interesting when thinking about colour perception, is that even if two people agree that a given colour is red, there is no way to know (as far as I am aware) that they actually perceive it in the same way. Maybe the brain of one person paints it red, and another paints it differently, and there is no way to know as we can't get into other people's heads.

I've got an anecdote that says that they don't.

If I'm looking at a certain color of green illumination and then cover one eye then the other, my perception of that color shifts slightly. It's still green, but with one eye it is "brighter" than the other eye.

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