Past 39 years

 Past 30 years--what's changed? New technology, per 'Abundance' and Peter Diamandis. 'His 5 Ds. Superabundancesays time measurement of money means things are MUCH cheaper. 11 bicycles now at cost in time worked of one in 1900. Technology destroys Post Office--iternet instead of mail. Easier international communication via Facebook, etc. FREE edication (MIT has free courses taught by Nobel laurastes). Khan Academy University of the People (free through MBA) Project Gutenberg (classics free), 'all' the information in the world through smartphones, and much more. Jennifer Patterson Hodges, Darrell Dow Tim Galeazzi.

But...'new technology destroy old groups': Rosenstock. How to retain community? Well, 'Contagious Disciple Making', started 80,000 churches in a few years (only 250,000 churches in these uSA. Barb Kalbach the Roseto Effect (health throug community, see on Wikipedia) could be done in small towns through community-members in public school American History or World History courses, etc. My 'The Next Thousand Years A Prayer asks this question yearly in regards to 12 small enthusiastic groups from Rosenstock's 'Universal History 1954'Dartmouth course, FREE at www.erhfund.org (audio and transcript. Incomplete on Google Docs
https://docs.google.com/document/d/1AcLJu-SRN_o0P4DnA4F1oqwbkxPpnVZz4QzSWuJkHOU/edit

Also see, 'It's Never Been Easier To Make Money'.