Vincent Freeman (Ethan Hawke) is a "love child" - that is, he was conceived (at some time in the techno-marvel future) without benefit of the genetic engineering utilized by all sensible parents in this New Age. While this engineering cannot transform ordinary DNA into extraordinary DNA, it can eliminate potential genetic flaws, select for sex and appearance, and generally ensure that Baby represents the Best Of Mom And Dad. Vincent's parent's failure to utilize this technology results in a baby who is horribly nearsighted, and who has a serious heart defect that projects a lifespan of only 30 years. This DNA profile places Vincent close to the bottom of the social, economic, and professional scale in the New Age, where opportunity is linked to a great set of genes.  Vincent's chastened parents don't make the same mistake with their second baby, and place their hopes on their younger son, giving Vincent embarrassed, qualified affection, and little in the way of goals, expectations, or hope.