20 Things You Didn't Know About Blade Runner 2049
10. "Four Symbols Make A Man"
During the scene in which K and Joi search the records in an attempt to find Deckard and Rachael's child, Joi observes that "Four symbols make a man."
As they scroll through the data, each string consists of four letters, A, C, G and T. Theses refer to the four nucleobases, adenine, cytosine, guanine and thymine that go to make up DNA, the very building blocks of life.
She goes on to say: "I am two: one and zero," which, just in case the digital revolution somehow escaped you, refer to binary code used to encode data into bit strings. She is a digital 'being' and therefore compromised of binary code, further emphasising the fundamental difference between the two, although both are man-made.
Love in a digital word is never easy...