A post by Tomer Ullman
Imagine the following in your mind’s eye, as vividly as you can:
A person walks into a room, and knocks a ball off a table.
Hold the image in your mind for a moment.
Now consider, for the image you conjured before you: Did you imagine the color of the ball? How about the person’s hair, or clothes, or perceived gender? Did you imagine the position of the person relative to the ball? Can you trace through the air the trajectory that the ball took?
If you’re like most people, your answer to some of these questions was ‘yes’, and some ‘no’. Although you could easily fill in details as needed, you did not bother thinking about some of these properties when creating the original scene.
And that’s kind of weird.
Non-commitment has been noted (under different names) in both philosophy and cognitive science. In philosophy, the discussion of the phenomenon started in perception, for example asking how you can know a hen is speckled, without knowing how many speckles it has (Ayer, 1940). Similar questions were then asked of scenes before our mind’s eye: One can imagine a striped tiger without knowing how many stripes it has, or a purple cow without knowing its shade of purple (Shorter, 1952; Block, 1983; Dennett, 1986, 1993, and see also more recent discussions in Nanay, 2015, 2016, and Kind, 2017).
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