some studies like this one show how cannabis accelerates fetal brain development (especially contrasted with alcohol which we know impedes it). The study also shows surprisingly that while cannabis alone isn't harmful, it worsens the negative effects of alcohol; so take-home message: alcohol is a no-no, and cannabis unfortunately exacerbates NOT mitigates alcohol's effects.Thanks for mentioning that @VantoCan! Yeah,
It's good to do real science so we can collect good data like this, instead of yay or nay sayers telling you it's always 100% right or wrong. We can only say always wrong, or more accurately "no known safe amount" about alcohol, which has been demonstrated by good science.