Yes. That was a typo. Thanks.
I just corrected it:
11. For example, one can break the addiction to drugs in a shorter time (say a month) if he has the discipline to stop taking it AND also stop thinking about it.
– If he stops taking the drug but goes on enjoying thinking about it (vaci saṅkhāra), it will not work. He may go on without using drugs for months and months, but one day, he may lose the resolve and go back to drugs.
– That happens to a lot of people addicted to different things like alcohol, smoking, or even over-eating. They may temporarily stop those activities, but months later they break them. That is because they had not stopped generating vaci saṅkhāra or engaging in upādāna for that activity.