This was about 62 years ago. Remember when he said he princess shuri should have been dead? That tells us there's more to the flashback. Let's wait before we decide.
#ONEPIECE1185
So you're telling me Brook witnessed all of this... and never thought it was worth mentioning to his crewmates? Not once? Even though it could've been insanely useful against the World Government? 🤔
The best conclusion to a fight in one piece.
Yes, big fist. All jokes aside, didn't oda literally say he was worried that the conclusion to kaidos battle was just going to be a really big punch?