This film heavily influenced many that would come after it and was almost a sci-fi masterpiece of dystopian filmmaking. In this possible future, more so as in the real world, eugenics and gene therapy are very real concepts. Gattaca focused on people who are genetically superior to their counterparts because of genetically enhancing their DNA prior to birth. Imagine if we started using eugenics now, where would we be in 100 years? How much of the population would be genetically enhanced humans, and how much of our population would (essentially) be "inferior" stock. Take the argument a step further, You're having a child, and you can't afford eugenics but as you raise this child and learn his physical and mental defects you decide to use these treatments for your second child, which becomes superior in every conceivable way to his older brother. Would working hard and pushing your body, which has congenital heart disease, be able to match physically the elder son in the long run? While that question is very plain, and secular, the concept is there, in a microcosm. In a world where social class and advancement in life occurs solely from your genetic profile, fighting against your own biology becomes the real struggle. Talk about "You are your own worst enemy." This film takes on a variety of philosophical, physical, and psychological struggles, that our characters have to face, and forces you to question your own moralities, and your critical view of your world. Not to be left out, concepts in destiny, and fate are dusted into the mix, hinting at the characters personal drive to achieve his goal, not for vengeance, or revenge, but to prove he doesn't need perfect genetics to be in that world.