Subject: Why sixteen million colors?

A computer screen can display something called true color, aka 24-bit 
color.  This is suppost to be about the maximum number of colors that the 
human eye can distinguish.  In this figure of 16 million, how many distinct 
 levels of wavelengths and light intensities are there?  I am aware that 
colors and light intensities are mixes.

I believe the human eye could do even better than 16 million colors.  Our 
film and screens can only show a limited range of light intensities.  Our 
eyes can do better.  During a total solar eclipse, for example, the eye can 
see more than film or screen can.  The best you can do to record a total 
solar eclipse is to compress light intensities or show the eclipse using 
many different exposures.

Re: Why sixteen million colors?