Garbage In, Garbage Out (GIGO)
There is a well-known concept in computer science called Garbage In, Garbage Out (or GIGO for short). You need not be a brain surgeon to figure out what it means. If you enter bad data into a program or an algorithm, you’ll get bad data as output. No duh. Seems self-evident to me. That said, I’m not sure everyone has adopted the GIGO way of life, and it’s making me sad.