We don't know exactly what each bit does, so we don't know what to delete.

LyndsySimon · on April 10, 2020

IIRC, it’s only about 30Kb of information, and the vast majority of that is shared with similar viruses in the same family.

Assuming there’s a reliable way to remove segments of the genome (I’m not a biologist, so I’m not sure if that’s practical), it doesn’t appear to be an impossible problem to solve.