a whole sector must change

The heaviest stakeholder shape. Solving the problem means changing an entire sector, where the people who make something, the people who regulate it, and the people who use it must all move together. Examples are closing a material loop across a whole industry, and certifying a technology no existing regulatory system was built to see. Ambitious language alone does not earn this gene. Many so-called grand challenges involve a bounded set of organizations that can be named.