Sustainable architecture is possible only when we're allowed to share wisdom broadly. Unfortunately, as I discuss with Chuck Marohn of StrongTowns University, we have burdened the profession of architecture with the necessity of uniqueness. Your work is expected to be your own unique creation if you expect to get published in the architectural magazines. But if you're not allowed to use other people's good ideas, then truly sustainable practices cannot spread broadly. This is one of the most important dilemmas in architecture today.