system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are some types of alcohol drinkable while some, like rubbing alcohol will kill you?
gpt
"Alcohol" is a general term for a group of organic substances. There are a lot of them and almost all alcohols are poison for the human body. However, at some point in time people found out that beer tastes well, and over the course of many generations a pretty good resistance to a single alcohol that is called ethanol was developed (hurray to the liver).

So only one Alcohol is somewhat safe for consumption **in very small quantities**, which has its reason in ancient human culture, all the other ones really are not (a few ml of methanol will blind you, a few more will kill you, for starters).