It is a fact that most, if not all organisms on this planet contain molecules in their bodies that assume the L-enantiomer exhibiting the property of chirality. I will not bother to explain this for non-scientists.
An evolutionary argument is this: If God intelligently designed life, why choose the L-enantiomer, why make enantiomers and the first place, and why wouldn't you have some animals that were made of the D-enantiomer?
My question is this:
Is it possible that life evolved in different places on the Earth simultaneously? That is, is it possible that all life did not evolve from primeval soup in the same place? Maybe there were many ponds of primeval soup in different places?
To test this experimentally, I wonder if there are organisms -- bacteria in thermal ocean vents and inhospitable climates that contain chemicals in the D-enatiomer form. If there are strange critters on our own planet with these D-enantiomers feeding off chemicals in ocean vents and such, it might lend credence to the idea that there were multiple points for the origin of life, that the primeval soup theory proposed by Oparin has some weight, and the probability of abiogenesis is higher than previously thought.
REDUCTIO AD ABSURDUM.