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Mark Simonson said:
An interesting insight from the study:We believe the most probable cause for the vertical-horizontal illusion, and by extension also the thickness illusion, lies in a probabilistic estimation of three-dimensional length, based on the visual properties of natural surroundings.This makes sense to me.
Jasper de Waard said:
@Vasil Stanev Those are just theories. I doubt there is much evidence to support your story.
Thomas Phinney said:I think it would be an interesting experiment to take a variable font with a contrast slider, and let the participants adjust that slider until they perceive zero contrast.
Ray Larabie said:
I think ITC Avant Garde is a good candidate.
Georg Seifert said:
Have you done the horizontal/vertical test with native Arabic speakers? As their writing system has a reversed contracts compared to Latin it might be that they trained in the opposite direction.
I just felt the paper was overcomplicating a simple issue with all the math and phrasing.
Hrant H. Papazian said:
Since we've only been making tall structures for a blip in time compared to the æons of evolution, I think it must have to do with gravity (which BTW is quite impervious to social conditioning).