[brydic1]

Another reason the period 1941-1945 resurrected the economy was the huge savings rate during that period. Americans were severely rationed on spending from everything to food, clothes, luxury goods, and automobile necessities and an absolute prohibition on purchasing of automobiles. On top of that the world's gold flowed here because many governments purchased war materiel from the US and transferred their gold reserves to pay for same. I do not see any of these things happening in our future

[wintertime]

Your explanation makes sense to me.

[AustinBill]

Equally important is that after World War II the USA was literally the “last man standing”. The rest of the industrial world was all but demolished by the war, and even ‘victors’ like Britain were effectively bankrupt. In such an environment the American economy was effectively the world’s economy, with a “clean field” in which to expand.

[Free Vulcan]

Yup and when the boys came back there was a great deal of pent up demand. Once goods were available again the economy really took off after the war.