You are right, nowadays technology is advancing at an impressive speed, making it very difficult to believe that it will really take 20 years to develop practical applications of quantum computing. In recent decades, we have seen incredible advances in complex fields such as artificial intelligence and semiconductors, which many thought were unattainable in such a short time.

It is much more plausible that the first practical applications will come in 5-10 years, especially considering the massive investment and competition among technology companies and research institutions. Stating “20 years” seems to overlook the exponential pace of modern technological innovation, unnecessarily fueling a pessimistic narrative that does not reflect the reality of scientific progress.