This wasted a large amount of precious spiritual medicine without having any effect, and many people still don't learn from it.
For example, Zhang San's experiment failed, but Li Si was not convinced and always wanted to try it himself. As the saying goes, failure is the mother of success. How can you summarize the experience if you don't try it yourself?
Just because others fail doesn't mean you will. The reason for failure might just be that you chose the wrong cat or dog?
Perhaps influenced by mythical tales, many once believed that foxes were the best experimental subjects. As a result, the foxes in the deep mountains around Phoenix Tail Town suffered a lot, always being caught and fed medicine for observation.
Experimentation can't be said to be without results, as there is a special fox breed in the mountains around Phoenix Tail Town called the "Silver Fox," with fur somewhat like a shade of silver, said to have been "bred" by ancient ancestors.
