
Originally Posted by
DarthEnder
Good point, but slightly flawed.
Whatever the exact requirements are for activating the Mangekyo. You clearly don't have to have the knowledge before you meet the requirements.
Kakashi didn't obtain the Mangekyo till after he found the tablet, so clearly, there's some technique involved in activating them a person would have to know.
Obviously, you don't have to know shit in order to meet whatever the requirements are, because unless you think Kakashi murdered his best friend during the 3 year time skip, Kakashi met them all BEFORE ever finding the tablet.