Pot is a safe drug, safer than alcohol, as insurmountable evidence suggests. This still doesn't mean it's completely safe, as in you can smoke arbitrary amounts without any negative effects. A rational person should read all this evidence and find a good balance between recreation and health. I don't smoke pot because I don't like it that much and the "slowness" it gives me the day after isn't worth the pleasure. I do drink a few times a month because alcohol, even though more dangerous than pot, does give me more pleasure and the day after is usually not bad enough that I wish I didn't drink the day before. It's a personal balance.
