You can reduce the time it takes someone to do something, without knowing how long it takes them to do. That's what I'm working on right now. If you make every

You can reduce the time it takes someone to do something, without knowing how long it takes them to do. That's what I'm working on right now. If you make everyone's computer 100% faster, you know that you're delivering a net benefit, even if you're unable to quantify it (it's certainly not 100%).