I think the main arguments against suicide are that it causes your loved ones a lot of harm, and (for some people) there is a lot of uncertainty in the future. Bracketing really horrible torture scenarios, your life is an option with limited downside risk. So if you suspect your life (really the remaining years of your life) is net-negative, rather than commit suicide you should increase variance because you can only stand to benefit.
I think the main arguments against suicide are that it causes your loved ones a lot of harm, and (for some people) there is a lot of uncertainty in the future. Bracketing really horrible torture scenarios, your life is an option with limited downside risk. So if you suspect your life (really the remaining years of your life) is net-negative, rather than commit suicide you should increase variance because you can only stand to benefit.