“If you want to maximize the net present value of a forest for its current owners and deliver the most wood in the shortest time, then yes: cut the old growth and plant straight-rowed replacement plantations, which you’ll be able to harvest a few more times. But if you want next century’s soil, if you want pure water, if you want variety and health, if you want stabilizers and services we can’t even measure, then be patient and let the forest give slowly.”