Re: If You Can Raed Tihs, You Msut Be Raelly Smrat
These results still seem surprising to me. Robustness through redundancy is the reason people always say most mutations are neutral with respect to fitness. Due to the redundancies in the genetic code, a lot of mutations don't have any phenotypic effect.
In this case they're not just claiming their random variants were harmless due to inbuilt redundancies - a quarter of them were actually fitter than the originals. That's surprising to me.