Board Thread:General Sly Cooper/@comment-26349008-20170331121807/@comment-1845428-20170401085341

That would create an actual paradox. By Cyrille wiping out the Coopers, Clockwerk would turn to the Le Paradox clan and wipe them out, which would mean Cyrille wouldn't be born, the Coopers wouldn't have been wiped out, meaning Clockwerk would focus on them, the Le Paradoxes wouldn't have been wiped out, etc.

Of course, without taking Clockwerk into consideration this still would have happened. By the Coopers not existing, the Le Paradoxes wouldn't have them as rivals, Cyrille's father wouldn't have been thrown in jail for that crime, Cyrille wouldn't feel the desire to go back in time, the Coopers wouldn't have been wiped out, etc.

I guess wiping out your rival via time travel just isn't likely to work out.