Question: Please correct me if I am wrong: the oldest light that we just begin to receive is around 14 billion light years old. This light originated from a lightsource that was about 30 million light years away (380,000 years after big bang.) So although the lightsource was 30 million light years away, the light took about 14 billion light years to reach us, because of the expansion of the universe. At the present, the lightsource is physically located about 46 billion light years away from us. (although its light has traveled 14 billion years only). However, by the same reasoning, the light that is just leaving the light source will take more than 46 billion light years to reach us. Therefore, the new light from the identical light source takes significantly longer time to reach us. As more and more new light is formed, then, the time it takes for the new light to reach us will evermore increase, until it increases to infinity. Therefore, the object will some day no longer be visible. Is my reasoning correct? Also, if this is correct, does that mean the object that we barely begin to see (the first light from big bang reaching us as a cosmic microwave background), will appear as a cosmic microwave background and then disappear completely in the later future?