With a 10x observation time, you would probably be approaching a uniform cosmic background of multitudes of galaxies. There would be negligible space without a

With a 10x observation time, you would probably be approaching a uniform cosmic background of multitudes of galaxies. There would be negligible space without a light emitter. > Will there be thousands of additional extremely red shifted galaxies? Yes, and also those that were too faint, but not necessarily extremely red-shifted.