By Michael Bérubé, Trustee Camphill Foundation North America My adult son has intellectual disabilities and needs  lifelong support systems. For now he has us, but we also need solutions  like intentional communities. Imagine you're driving 80 miles per  hour. The road ahead ends in a precipitous descent. What lies beyond the  cliff's edge, you can't see. You only know that you're going to fall,  hard and fast. And you desperately hope that someone or something will  c