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TheOtherDave comments on Generalizing From One Example - Less Wrong
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Wait - there are people who can't do this? How do they get ear-worms? If you imagine Boris Karlof singing "You're a mean one, Mr. Grinch", and the voice in your head doesn't sound like Boris Karlof, what does it sound like? How can you do a Ronald Reagan impression if you can't hear what Ronald Reagan sounds like in your head?
I get terrible, terrible ear-worms. I once heard parts of the first 2 movements of Beethoven's 5th nonstop for almost a week.
I've introspected about this a lot - yes, introspection bad - trying to figure out how many parts I can hear at once. At first I thought I could hear 3 to 4 parts at once (4 only when the song was very familiar or the parts were very different). But I can't hear even 2 parts begin at precisely the same moment. It seems to require very rapid, barely-perceptible, attentional switching between parts, on the order of tens of milliseconds, to change the note.
Mozart could reproduce complex polyphony after hearing it once, so he must have been able to hear and imagine all the parts. Although I'm sure he had very good compression and predictive accuracy to help him reconstruct it.
It doesn't sound like anything.
If that seems odd to you, imagine a triangle.
No, really, do it. I'll wait.
Now: what color was that triangle? How many centimeters across was the base? Was it a solid, or a line enclosing an area, and if the latter how thick was the line? Did it have a matte finish, or glossy? Was it opaque, transparent, or translucent? If opaque, did it cast a shadow? Where was the light source, and how tall was the triangle, and what was the color of the light... for example, was the shadow cool or warm?
Most people's imagined triangles simply won't have those visual properties, even though triangles they actually see do have those properties, because imagination isn't a matter of re-presenting things to our visual systems. It's something else, though it has aspects of that.
In much the same way, when I imagine a song, it doesn't sound like anything... it simply doesn't have those acoustic properties.
Or, well, that's my default state. I've trained (mostly for my own entertainment) to where imagined songs have various acoustic properties for me if I pay close attention to providing them, but typically they don't.
So this is a few months later but I decided to respond anyways because 1) I had answers to many of your questions when I pictured a triangle and 2) my name is also David and "TheOtherDavid" is a name I frequently use online. How's that for typical mind?
Anyways, without even realizing I had done so, when I pictured my triangle, it was: solid, red-orange, matte, opaque, and it had no shadow. As triangles go, that particular form means nothing to me that I am aware of (it's not, for example, a sign I see at work on a regular basis or anything like that) it just happened to be what I imaged. For whatever it may be worth, I read "You're a mean one, Mr. Grinch" et al in the appropriate voices in my head, but am unable to produce music or other specific sounds that I am aware of.
Similar to this type of thing, though, I experience fiction almost as a movie both as I am reading it and in retrospect. Even just after I have read a page, I will have no recollection of any of the particular words used to describe the scene, but will be able to recount everything that just happened in detail. It wasn't until I met my wife in the beginning of my time at college that I realized this wasn't how everyone experienced books.
You might be generalizing from one example. There are plenty of games asking people to imagine (say) a cube, then asking them about various properties of the cube, and then purporting to relate them to features of the subject's personality, and I can recall very few people answering “I don't know” to any such question.
I'm confident I'm not generalizing from one example, though I might certainly be overestimating the relevance of my sample.
To be a little more concrete, I would be very surprised if it turned out that more than, say, 10% of the population honestly included all of those elements, or even most of them, in their imagined triangle if instructed to imagine a triangle. Do you think I'm overconfident about that?
How many of those elements did you include in your triangle, before being prompted by the questions?
I'm not sure you can generally answer that by introspection. At least in my case, when prompted by the question I remember having seen the specific detail. However knowing how the mind works, I also assign high probability to the explanation that my mind filled in the requested detail when prompted - rewriting my memory, loosely speaking. This is, I believe, the same phenomenon that makes eyewitness testimony so unreliable.
I agree completely, but it's socially conventional to ask people questions about our past experiences as though we were a definitive source of information about it.
"Very few" /= "none." People seem to vary widely in their visualization abilities. It hadn't previously occurred to me that they could vary in their auditory imagination, but now that TheOtherDave reports his experience, I feel like I should have expected it.