system
Given the following post, respond as if you're commenting on Reddit:
human
Is suicide rational?

Hi. 
I was wondering if you guys think that suicide is always irrational ie it is impossible for a rational person to commit suicide. 
In mental health community,  it is widely accepted that suicide is always irrational.

I personally disagree.  My reasoning is simple.  Let's say the total amount of suffering till this instant is x.  If you choose to continue existing (till natural death) ,  let's say you are going to get y amount of suffering, and gain z amount of happiness. 
If z-y>0, then it makes sense to endure suffering,  otherwise suicide is justified from a negative utilitarian perspective. 

Perhaps you think that suffering can't be measured (it's subjective),  the kind of math that i present above is fallacious and leaves out the human aspect.  If you think so,  wouldn't you agree that any justification of continuing/ending life should be left to the individual and not dictated by the society.

PS: I am not planning suicide.  I just want to have an unbiased discussion about it.
gpt
If your life from this point on is going to be horrifying torture, then it may make sense to comitt suicide. The reason that medical health care professionals say such is because in the circumstances normally facing suicidal people are not ones where it would make sense to.comitt suicide. Even if your life is not presently worth living, it is quite possible for your life to become worth living.