Impossible to Code Strategies

I'm not a programmer at all...so I was just wondering what types of strategies are impossible to code or automate?

 

fib strategies im guessing, since its kinda discretionary where you pick your 0 and 100% lines

 

Head and shoulders top. At least I couldn't do it.

 

Incorrect to all. If you have a mathematical basis, you can code it. If you're flying by the seat of your pants, you cannot code that, then.

 

Talk is cheap.