>>12426859CRISPR and cas9 (and others) are good at cutting DNA, but it has an error rate, and its shit at precisely inserting genes. deletions and frameshif happen almost always. but CRISPR as it stands now is just a stepping stone in a long line of gene editing biology, like the zinc finger method. Than there is the sleeping beauty transposon system.
Eventually gene editing will become fully viable, the question is will it ever be legal to modify human embryos, or to do inheritable gene editing.
what the full posibilityes are? well lots of shit. editing the myostatin gene makes you insanely fucking muscular. it has been done on dogs and sheep and other animals. editing aging genes has made c elegans live 6 times there normal lifespan.
the chinese do some human embrionic gene editing, some dude tryed to make AIDS resistant twins. he faild though.