The first thing you will learn is people over-exaggerate everything.
The second thing you learn is NO dog is "unbeatable," even legitimately great dogs.
No matter how good any dog is, there are dogs who either (1) are still overall better animals or who (2) have styles that are rough for them.
Some dogs retire before they are beat
en, but that doesn't mean they were unbeat
able.
Chinaman was a great dog, no doubt, but there are dogs that would kill Chinaman (that he never faced), same as there are dogs that would out-slick him (that he never faced).
The only thing that can correctly be said of Chinaman was,
of the dogs he was put with, none beat him, but that doesn't give Chinaman (or any dog) an "unbeatable" medallion against every dog that ever walked the earth.