Physics assumes vacuum isotropy and the Equivalence Principle (EP) - that all bodies vacuum free fall identically. Beryllium marbles to neutron stars, all compositions of matter validate the EP to some 5x10^(-14) difference/average. Do maximally enantiomorphic atomic mass distributions falsify the EP? Nobody has ever looked. Teleparallel gravitation theory says left and right shoes fall differently for diastereotopically interacting with spacetime torsion (not curvature).
Organic chemist Uncle Al is competing in a public physics essay contest. His entry says physics doesn't know its left foot from its right. It should look! A lyric (physics - gotta dance) summary and voting procedure are here: http://www.mazepath.com/uncleal/fqxi.htm Kindly stop by, then surf the essay contest and vote Uncle Al a big juicy 10 to push for the experiments.