Nature really said "four nucleotides should be enough for everyone" and built the entire biological world on it. Humans count with 10 fingers, computers operate in binary, but DNA just chilling with its A, T, G, C quartet like it's the most efficient coding system ever. Evolution had infinite possibilities but went with base 4 because apparently, it's the sweet spot between "too simple to store complex information" and "too complicated for reliable replication." It's like nature's compromise between data storage and error correction. The cosmic programmer clearly wasn't getting paid by the base pair!