Because stopping isn't the goal. Stopping permanently is the goal. And to do that, you must completely overwrite the subconscious programming that is causing the smoking to cycle endlessly.

Most of the issue isn't smoking, or nicotine, but the subconscious beliefs a smoker has about smoking, and what they should expect when they are trying to quit. It's social hypnosis, and it is the real reason people have a hard time quitting.

Once you have quit smoking using the program, if you stop, the social hypnosis isn't completely overwritten yet, and as time goes on, you'll probably start experiencing cravings again and eventually start up again.

However, if you use the program for 6 months, you're very likely to have completely overwritten the deep subconscious beliefs that cause the real issues. When that happens, you'll not only have quit smoking, you'll genuinely be a non-smoker, and it will be permanent.