A slow increase in the supply of lqbor, though possibly without the desired increase in demand for said labor.

One of the issues is the speed with which this is about to happen. It likely won't give economies time to properly adjust.

Usually when you have an increase in the labor force you can get increased GDP output and higher supply of goods and services. This puts downward pressure on prices, and demand for those goods and services generally increases, as they become more accessible. This extra demand inntrun generates further enttepeneurship as people seek to meet it. But if it happens too fast that cycle may substantially lag behind the increased output without creating more demand for labor.