Globalisation goes into reverse and everyone retreats to their homes. From then on, people only ever shred one spot and live in hippyish tent communities for the rest of their lives.
For one reason or another our ability to travel is limited and people return to a simpler time, living simpler lives. As a result, we all have to make do with the snow that lands on our doorstep instead of jumping on a plane to Japan to hunt down powder. People who live near naturally good spots become increasingly territorial – the rest of us just pray for a heavy winter.