In re: the question of ergonomics.Well, in the bizarro universe of Arabic, maybe? The reason we think increasing goes left to right is because we write that way, left to right. Arabic is written right to left, making the practice of increasing right to left thoroughly logical.
I was having a discussion on metering techniques with a group of people and said that when I meter off of an 18% grey surface like the Lastolite EZBalance, I bump the meter needle a little to the right of center to increase exposure by 1/3 to 2/3 stops.
Whereupon a Nikon shooter in the group said that Nikon meters are backwards and the needle moves left at exposure increases.
My only response was, "In what bizaro universe do increasing values on a number line go right to left, instead of left to right."
I could get used to a lot of things but that one I'm not sure I would ever be able to adapt to.
Come to think of if, Chinese/Japanese is, if I do not misremember, traditionally written top-to-bottom, making an increasing scale where higher numbers are lower, a logical choice. (Although I would find that even harder to get used to)
Anyway, as someone said earlier, it is customizable. (as it should be)