And the problem with a pricing mechanism that spans generations is that it will have to assume a great deal about how helium will be produced and consumed gener

And the problem with a pricing mechanism that spans generations is that it will have to assume a great deal about how helium will be produced and consumed generations from now. Remember when the world ran out of wood and whale oil a bit more than a century ago? Nope, cause our great grandparents pivoted into using other materials for ships and houses and mineral oil instead.