THE REASON GENE EDITING HASN'T TRANSFORMED HUMAN HEALTH IS THAT CURRENT GENE EDITING TECHNOLOGIES LIKE CRISPR ARE VERY LIMITED

Summary from the TLDR newsletter

Scientists at the Arc Institute have developed a new DNA editing technology that can seamlessly write massive changes into the right place in the human genome. Bridge RNAs in bacterial 'jumping genes' allowed the scientists to make safe and arbitrary changes to every nucleotide within (up to) a 1 million base pair sequence in human DNA. They can be used to correct disease-causing DNA repeats in Friedreich's ataxia, Huntington's, and other repeat expansion disorders.