A chemical process that produces a chiral product will always give a racemate if there is no chiral influence (for example, a chiral catalyst, solvent, or starting material). Because it does not require particular conditions, synthesis of a racemate can be cheaper and easier than a synthesis of the pure enantiomer. This raises the question of how biological homochirality originated on racemic primordial earth. Racemic mixture reagents and reactions are considered to be "not stereospecific" or "not stereoselective" since they are undecided in a certain stereoisomerism.