What if China and India both lost 10 billion people?

Suppose the population of China and India decreases by 654.38+0 billion; Then the GDP of the two countries immediately fell by more than half!

Will fall into the ranks of ordinary countries with a large population, although it is still the first and second largest country in population, but its influence is far from the status quo!

Of course, the environmental pressure may be a little less; Now many labor-intensive industries may not survive!

In short, this kind of thing is impossible. Let's guess.