China has not even ONE WORLD CLASS technology or world leadership in a single field.
They have NOT been even able to built a top class fighter aircraft till date despite trying for 20 years.
US and Europe dominate world patents and new inventions and also fresh new killer things like Internet, etc.
What makes u think suddenly Chinese will becomes geniues in inventing.
It is techologies that will still keep west on the top.
USA has won 270 nobel prizes alone. UK 100. China 3.
75% of world's key inventions like automobile, aeroplanes, railways, missile technologies, rocket science, electronics, molecular biology, biotechnology have come from USA and EUROPE.
What makes you think that China will come even close ?
Wht makes you think that europeans or americans will not do innovations in the next 50 years ?