One insistent question that will shape 2017 is whether we're witnessing the gradual decay of the post-World War II international order, dominated by the economic and military power of the United States. After the Soviet Union's collapse in 1991, it became fashionable to talk of the United States as the only true superpower. Pax Americana... ...It wasn't. Obviously, this reassuring vision no longer describes the real world, if it ever did. On all fronts, the actual future confounds the imagined future. Economies around the world have slowed. In virtually every major country — the United States, China, Germany — growth...