Earlier quoted context omitted.
> Physics is a science. Math is. Or Biology. Finance is not. Because it deals with the madness of crowds. If you follow the scientific method, it's science. If you write an observational essay, it's not. You can build theories around falsifiable, replicable experiments pertaining to the madness of crowds. The error bars are longer. But they are not infinite.
You are correct. But when people say "finance is science" what they usually mean is "here is the complicated math that proves you can't lose money on this, we've modeled everything". As the joke goes, 6 sigma events happen in finance every week.
100% agree. When I was an algorithmic derivatives trader, we joked that the math was there to scare up investors and scare off compliance. Little did we know...