If you have the right sized pot, spectrum and nutrients and all that you can do those numbers, i know people who have. We dont see many people trying to push one plant that far though, maybe because since were working from seed you dont know what phenotype expressions you will end up with untill its too late; which could make it more appealing to run a few smaller plants. Also autos are somewhat about saving space so most people with the space are going to go to photos in hopes of better yields. Its a big commitment to a single seed to attempt to produce that much but yes it is possible.