Love isn’t something we invented. It’s observable, powerful, it has to mean something... Love is the one thing we’re capable of perceiving that transcends dimensions of time and space.
Love is rather like time itself and the way it functions in the film. The truth turns on love, however, as Mann’s data is a manufactured falsehood designed to lure the spacecraft Endurance to his own rescue. Love, had it been chosen in faith, would have redeemed time, but the simple credulity in Mann’s data alone, diverts the crew in an unfortunate direction.