EVERY day the world’s population becomes greyer and does so more rapidly than the previous day. About four decades from now, seniors on every continent will exceed the number of young, an event that has no parallel in the history of humanity and has the potential to cause an economic revolution unless all nations take steps immediately to take advantage of the changes.

http://www.theaustralian.com.au/news/opinion/greying-population-gives-us-a-golden-opportunity/story-e6frg6zo-1226122399202