I sure hope after 12 pages you guys are close to discovering whether the US provides all critical electronic design knowledge to the world.
Maybe the population is just, on average, smarter than others. I've heard it argued that most people in Europe during the 16th to 19th centuries lived in abject poverty, but only a subset of them had the balls to walk away from everything they knew, get on a ship to an unknown land, and hope it all turned out alright. Maybe these particular qualities are more prevalent in the US for that reason.
Also, like Australia, the US is tremendously lucky. A relatively small population (for the size of the place) surrounded by vast resources. It must have been easy to generate wealth, and with a small population to share it over, everyone gets rich. Look at Australia: 27 million people sharing a continent bigger than Europe. Dig up some coal and minerals, sell it to the Chinese, and we're all living like royalty.
Something special happened in America after WW2. Their aerospace industry went supernova and achieved some truly astonishing things. Just
ten years after the end of WW2, and just
two years after being proposed, Lockheed was flying the U2 at 70,000 feet.
A mere 7 more years passed before the A12 took to the air, and two years after that the Lockheed SR-71 Blackbird began flying. Nineteen years after WW2 the Americans had produced the fastest ever operational aircraft in the world, and the highest. It cruised at Mach 3.2 - faster than any other aircraft could sprint - at an altitude of 85,000 feet. It was astonishing, magnificent, extraordinary, glorious, and we're still in 1964! Several crashed in service or testing, but not one was ever lost to enemy action. It's worth pointing out that - prototypes aside - no operational aircraft has matched or exceeded the altitude and speed records set in the 1960s by the Blackbird. What an amazing achievement.
And of course there's the other thing: the Apollo programme. In less than a decade the US went from a statement of intent to placing a human on the moon and bringing them back again. Wow.
So the US had one hell of a technological golden age in the decades after WW2. It was more than just unlimited money. There must have been something special going on - a culture of "can do" like we haven't seen before.
I don't know exactly what, or why, it happened. But it was a hell of a thing. As it happens I think the US has peaked already and is now on the way down. My own country - the UK - peaked about about a hundred years earlier and remains about a century ahead of the US in its downward curve. America is still riding high on that extraordinary wave of achievement, and that is why it provides all the critical electronic design knowledge in the world.
Except it isn't really "all" about the US. Widening the remit to include technology in general, we have: graphene* (UK), Maglev trains (UK, then Japan), 5G (China, South Korea), World Wide Web (CERN), lithium ion batteries (Japan), digital photography (Japan).
*Graphene: a solution looking for a problem for the past 20 years.