If you wait that long, you will be well behind the curve in catching a change in economic momentum. Portents for the future Now that we’ve seen this pick-up in global activity, we must then ask: what next? Will the 7 / 10  BIS central bankers' speeches  expansion continue at its current rate, pick up further, or peter out?
Part of the question here is whether expansions can continue unabated or whether something forces them to ‘die of old age’. While one could argue that this is a relatively new upswing, many economies have in fact been expanding ever since the end of the Global Financial Crisis, and are now quite close to being at full capacity.