mRNA vaccines aren't really modifying genes or changing expression in the way CRISPR or RNAi can. Given the reaction to even the most basic deployment of a new

mRNA vaccines aren't really modifying genes or changing expression in the way CRISPR or RNAi can. Given the reaction to even the most basic deployment of a new technique, I doubt there will be mass adoption of more complex technique that alter gene expression any time soon. However, these tools are too powerful to ignore. The most likely outcome is that these tools will be approved to cure rare diseases (CRISPR is already approved for sickle cell for example). A few decades of use will help ease anxiety about their use and safety.