The same thing occurs for many optimizations. Unless something is unbearably slow and you speed it up 10x or 100x; most people won't notice. You might spend so

The same thing occurs for many optimizations. Unless something is unbearably slow and you speed it up 10x or 100x; most people won't notice. You might spend some time making an often called function return in 1 millisecond instead of 2 or 3 and some might notice that things 'seem' snappier; but no one knows why.