While he was known for his incredible athleticism and agility, it's important to note that:
* Backflips are a high-risk maneuver. Even skilled athletes can get injured performing them.
* Bruce Lee's focus was on combat applications. He was known for his speed, power, and efficiency in combat, rather than acrobatics for their own sake.
* There are very few recordings of Bruce Lee's training. We mainly see him demonstrating his skills in films or specific training clips.
Therefore, it's impossible to definitively say whether or not Bruce Lee could do three backflips without stopping.
It's important to remember that:
* Bruce Lee was a master of many martial arts disciplines. His skill and focus were likely on techniques that would be most beneficial in a real-world combat scenario.
* There's a difference between athletic ability and specific acrobatic feats. Even though he was incredibly athletic, that doesn't necessarily mean he was trained in backflips or prioritized them in his training.
While it's fun to speculate about his abilities, we should rely on the information we have and avoid making assumptions about his skills.