Metrics are a must to understand complex systems, as you can’t just comprehend them. Like economy or complex business.

Without understanding, you will be making decisions based on gut feeling, which is ok if you are Jobs, and not ok if you don’t have a magical vision for the product that will be a success.

I think of it as evolution. If you want to rely on luck - don’t track anything, let the natural selection work. If you want to control your destiny, think very hard about what you track and what you do when numbers change.

I saw both negligence of metrics and mindless obsession with useless ones, with the same results - frustration