> In the case of the 'eye', Anthony Appiah calls this the 'stereoscopy'. I.e. > Do the experiment: blind your left eye and you'll see that figures (while > retaining their colour) loose a sense of 'profundity' or depth. The reason: > as we say in 'stereo' music -- two loudspeakers, to appreciate the basses > better: two eyes see better than one. > > Other than that, I always found otiose that humans should have two, rather > than, like the cyclops of Ancient Antiquity, only one eye. "Other than that"? The parallax view is essential to human experience. Incidentally, I was reading David Baldacci's "the Camel Club" over the weekend and he wrote in one place that Burkas are designed to eliminate a woman's peripheral vision so that she must turn her head to look at something. This gives the man full information about where his wife (i.e. property) is looking. WOW, those male oppressors are diabolical shitheads. Of course, the whole thing may be an old wives tale -- except there are probably few 'old' wives to tell that sort of thing. p ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html