You can think of it as the photon and our galaxy were racing away from the distant galaxy we observed, and it took 11 billion years for the photon to make up all the initial distance. The analogy I just gave is simple, and if you try to apply it for precision cosmology it is *way* too simple... I simplified the issue of the universe expanding by pretending that the two galaxies had some constant relative velocity. It is more complicated to work out them math for space expanding.
Forming opinions as we speak