One interesting thought that people I talk to consistently didn't think about (myself included) is that any person who gets their genes edited is faced with an ethical dilemma of whether or not they should procreate, as any changes are then essentially mutations that are permanently introduced to the human genome. Even if the interactions with every other gene are understood, do we know what this will effect in the future? What about every other possible genetic interaction? Evolution?
I don't know if this is examined in the article, I could only read the first few paragraphs.
