"This does not make sense chemically." - Kate
What doesn't? What have stated that is wrong? I may have used simplistic language and analogies but that doesn't make me wrong!
"I am talking about homochirality in living things in nature and racemic solutions in non living chemicals and other objects. Do you mean that homochirality is expected over racemic mixtures?"
In the biosphere yes of course. Left and right handed molecules are not identical insofar that they do not make use of the same energy resources; they are as far as life is concerned, completely different. You cannot use one set or type of molecules in an environment with specific constraints and then use the results obtained from those observations to conclude anything about other molecules in other environments. In the context of your posts you are saying that scientists set up a system in the lab and looked at how specific chiral molecules behaved. From that you then state that this gives you reason to conclude that chirality that we see in the world indicates a guiding force controlling things in such a way that life uses the left hand variant.... Is that summary wrong?