Most of this was because the top most talent of every third world company wanted and came to the USA. Once they arrived at the US, they used their disproportion

Most of this was because the top most talent of every third world company wanted and came to the USA. Once they arrived at the US, they used their disproportionate quality of human capital and combined with the immigrant zeal to prove themselves they can succeed at life by doing great things in a new country. In the past the decade, it has become impossible for most of India and China's best people to come to the US due to very long Green card wait times. From the Indian perspective alone. Billion dollar start ups and entrepreneurial ventures are popping up all over the country. Even a decade back this was impossible to even think of. My guess is US is will gradually lose its grip being the economic super power of the world as China and India eat their lunch. It won't happen over a throw of switch, it will be a very gradual prolonged process.