Macro Trends that Business Families Should be Aware of

There are a lot of macro trends that families should be aware of. From what I heard in the last two days, those families I met with and what they expressed, I think the difficulty is more, how do you keep going with a family business, which was established some time ago, 150 years ago. The question is not evolving the model but is this business, in the macro-economics of today, still going to be a viable business 20 years from now? And the question is, not only how you evolve the business, which not everybody does, but the other question is should we get into other businesses?