【お題日記】ノーマルとアブノーマルの境界線は？

boundary...
normal andabnormal...
what should i say?
people wouldfind something as normal if it is usual in the place they're livingeven if itagainsts thebasic format ofhumancreation.
let me say a thing likehuman killshuman is normalwhen itcame for survival; but killing iscrime by the law (may i sayabnormal? for people to kill). or i tookgay (homosexuality/ヤオイ) as anabnormality since it is notcompatible with the mainpurpose ofsexorgans that is tobreed; but somenationhas the rule tomake homosexuality as normal.
so, the boundary? i can't say somespecificword about it.