Attention, attention, business people of Earth – – – don’t make “one product” companies, at least if the product is physical, and especially if it’s going against some megacap. That goes for you, GoPro Inc (NASDAQ:GPRO). That goes for you Gogo Inc (NASDAQ:GOGO). And it definitely goes for Fitbit Inc (NYSE:FIT), now at a 91% loss. You might as well start a company called Word Processing Corporation and go toe-to-toe with Microsoft (NASDAQ:MSFT).