logoalt Hacker News

jculyesterday at 11:31 PM6 repliesview on HN

The whole idea of colour and light frequency is fascinating.

These are just frequencies of light, but the subjective experience of them is so much more.

And the whole thing of my perception of "red" or what I call "red" could be very different to someone else's subjective perception. But we would both call it red and associate it with the same thing, fire, love, heat, danger etc.


Replies

sgctoday at 1:23 AM

> what I call "red" could be very different to someone else's subjective perception

It's worth noting that is true of virtually everything we know. >>This is a very simple sentence.<< Anybody who understands English, 'understands' it. But what it means to understand it is perhaps completely different for each person. As long as they fit into the same place in their worldview (Lewis Caroll's Carrollian syllogisms come to mind), practically it often doesn't matter beyond recognizing the wonderful uniqueness of each human being. Likewise, unless somebody is color blind or perceives more colors than others (tetrachromats), it doesn't matter since the relationships between the different concepts or colors will be analogous amongst most people - so a common understanding within the differences is possible. Or perhaps it is more precise to say that there are so many data points in color perception or anything we know, that despite the minor differences in relationships, we understand each other because the differences must be minimal given the practically unlimited data points constraining our perceptions. In fact, when people's perceptions of things vary too much, they can be classified as mentally ill even if they understand many things perfectly well.

da_chickentoday at 12:09 AM

I think it's important to remember that we're not perceiving some fundamental aspect of light. We're perceiving how the photosensitive portions of our retina convert light to stimulus, and how our brains construct a meaningful image from that stimulus in our mind.

Like film photography doesn't happen in the lens or the world. It happens in that photosensitive chemical reaction, and the decision of the photographer.

show 1 reply
tophamtoday at 4:24 AM

This is true, and illusionary at the same time.

While our precise perception of red may not match, the interplay between colors is such that people perceived them to go together, or clash, etc, in a somewhat consistent fashion.

This means that, over the general population the perception of color is very similar from person to person. Ignoring genetic defects.

14today at 3:51 AM

I have thought about this before as well. Like maybe what I see as red you see as purple but since we have always been taught that what we both see is red to both of us it is red.

I am however leaning more to the belief that typically we all see colors the same. But it is one of those things that could never be proven.

Another interesting thought that comes to mind speaking about color perceptions is I recently read an article or post I honestly don't remember where that discussed what do blind people see like do they just see blackness all the time. According to what I read it claimed that people born blind don't actually see a blackout picture they literally just don't perceive anything. I think for most it would be hard to imagine nothingness but I could accept that as a true fact.

awesome_dudeyesterday at 11:39 PM

But also - colours don't exist without a name

eg. Before Orange, there was only shades of yellow or reds

show 2 replies
huflungdungyesterday at 11:58 PM

[dead]