Its easy to think of programs as existing in the unbounded abstract, but as soon as you run them, you'll find the logic fragments are competing for physical rep

Its easy to think of programs as existing in the unbounded abstract, but as soon as you run them, you'll find the logic fragments are competing for physical representational resources (bits in RAM, CPU cycles etc.). So having feature X does cost feature Y for a fixed CPU and RAM budget. finite resources implies tradeoffs