50 years was not a short period of time, even for a big world like the cultivation world. Many things had happened in these 50 years.
The biggest change in the world of self-cultivation was the black Tiger Gang. With the early preparations of Zhao Hai and the support of Shi Quan shop, the black Tiger Gang had become the number one force in the world of self-cultivation. In the past 50 years, the black Tiger Gang had cultivated more than 500 longevity stage Masters, which was equivalent to 10 longevity stage Masters per year.
The reason why the black Tiger Gang had so many longevity stage experts was because of the Shi Quan shop's support. They sent piles of good things to the black Tiger Gang. When the black Tiger Gang obtained these resources, it would allow those who were originally talented to obtain better cultivation resources. Their cultivation speed would naturally be faster.