After trying unsuccessfully to mimic Bruce Lee's famous one inch punch technique for hours, Adam came to the conclusion that it wasn't possible to be copied, or at least not yet possible. It seems that specialized skills like killing techniques of various martial arts needed a base or foundation; the user of the technique must be extremely familiar with the principles of the technique before being able to actually use it. After these have been learned, then the user can now increase their proficiency with the killing technique.