It seems any conversation about stocks these days involves something about Amazon or Apple or Facebook. I remember back in the day when it was Walmart and Microsoft that were the toast of business. Like Microsoft and Apple, they were deemed to be indestructible and now even though they are still significant businesses, they don't carry the same level of cache. What happened to Microsoft and Walmart was nothing different for most companies. Companies, especially dominant one's lose their some of the mojo or comparative advantage. In this episode I share some of the reasons that cause companies to regress. They are worthy of keeping them in your back pocket if you are evaluating any of the big companies.