The latter. I’ve read of limited successes in other fields of research (no one is publicly trying to make something like this) that indicate it’s just barely possible, maybe, with some luck.
One nasty thing is that the virus doesn’t have to be safe. It just has to work, and it’s not a problem if it permanently damages the people it doesn’t kill. So, creating a weapon like this is fundamentally much easier than trying to create, say, a treatment for cancer using similar methods.
The latter. I’ve read of limited successes in other fields of research (no one is publicly trying to make something like this) that indicate it’s just barely possible, maybe, with some luck.
One nasty thing is that the virus doesn’t have to be safe. It just has to work, and it’s not a problem if it permanently damages the people it doesn’t kill. So, creating a weapon like this is fundamentally much easier than trying to create, say, a treatment for cancer using similar methods.