$1$ : It means "there exists something"

$0$ : It doesnt mean "there exists nothing", instead it means "there exist something but that is nothing"

Accept policy:

My accept policy is to accept the first completely correct answer. Acception is final and will never be changed. If no complete answer is available after a certain time, I accept partial answers.

Answering policy:

I try to answer at least two times more than the number of questions that I ask because my questions are usually two times more difficult than the questions that I am able to answer.

Voting policy:

I try to upvote all constructive answers to my questions and all nice questions/answers. I try to avoid downvoting and rather I use diplomatic ways to overcome the problems. All intentionally problematic questions or answers will be downvoted.

Respect policy:

I respect all persons who are willingly to help others. I show immediately in the comments that I dislike arrogant types.