And there's always this amorphous blob of manufacturing jobs coming back being discussed. While the last time the US was a manufacturing powerhouse, things were

And there's always this amorphous blob of manufacturing jobs coming back being discussed. While the last time the US was a manufacturing powerhouse, things were made completely differently. The US can't just return to manufacturing, because manufacturing is fundamentally different from what it was in the 80s. All the knowledge is lost, and all the knowledge that was lost was already incompatible.