Entropy/lose the math, need laypersons def..

[BrianSoddingBoru4]

I guess the use of "Low" vs "high" are counter intuitive to me. 

I know the feeling.  Some years ago, I audited a uni course in urban pest management (no real reason, it was just something that sounded interesting).

It turns out that all pesticides have a value called 'LD50', which is essentially a measure of how toxic a particular chemical compound is.  The counter intuitive bit is that the lower the number, the higher the toxicity.  You'd think it'd be the other way round.

Boru