> Why don't these companies have a scientific strategy running alongside your product/customer/marketing/financial strategies? Because the two possible sources

> Why don't these companies have a scientific strategy running alongside your product/customer/marketing/financial strategies? Because the two possible sources for such science are neuroscience and psychology. Neuroscience hasn't evolved far enough to offer any meaningful evidence for or against the claims, and psychology isn't even a science as the term is defined (a discipline that supports or discards its theories based on experimental evidence). That doesn't stop outfits like Luminosity, in fact it helps their marketing to be able to offer hand-waving claims that can't be meaningfully refuted. > From a company making bold claims like this I want to see a continual string of increasingly sophisticated trials, each one giving increasingly robust indications of success. Why would they do that? The drug industry doesn't do that, and they have a much higher chance to conclusively prove or disprove the value of their products. But they know better.