Then again, why is it that distant galaxies, many of which are larger than our 100,000-light-year-wide Milky Way, appear so well structured from our perspective? Shouldn’t the far side be a bit ‘off’ from the near side since activity there is potentially 100,000 years separated from the other? Or is 100,000 years a “mere bag of shells” in the galactic scheme of things?
continuing...our Sun takes approximately 250 million years to go once around the Milky Way. So I guess, seen from a great distance, there might not be much visible difference between the near side and far side.