Pessimistic view:
GA can NOT fight these large trends.
1. Demographics of an aging pilot population
2. Societal shift away from personal accomplishments, and activities with actual risk, and learned skill involved (virtual/cyber world takes precedence over real world)
3. Cost of acquisition, maintenance, repair, operation, and storage of GA aircraft
4. Governmental requirements, regulations, and associated costs, and complications
Optimistic view:
1. Some form of innovation allows practical, cost effective GA travel, and recreation
2. Attitude adjustment of younger people looking for real world, not virtual world challenges, and accomplishments. (gets their heads out of their phones, and X-boxes)