Does Distant Starlight Prove the Universe Is Old?
Any attempt to scientifically estimate the age of something will necessarily involve a number of assumptions. These can be assumptions about the starting conditions, constancy of rates, contamination of the system, and many others. If even one of these assumptions is wrong, so is the age estimate. Sometimes an incorrect worldview is to blame when people make faulty assumptions. The distant starlight argument involves several assumptions that are questionable—any one of which makes the argument unsound. Let’s examine a few of these assumptions...
...It is usually assumed that the speed of light is constant with time.2 At today’s rate, it takes light (in a vacuum) about one year to cover a distance of 6 trillion miles. But has this always been so? If we incorrectly assume that the rate has always been today’s rate, we would end up estimating an age that is much older than the true age. But some people have proposed that light was much quicker in the past. If so, light could traverse the universe in only a fraction of the time it would take today. Some creation scientists believe that this is the answer to the problem of distant starlight in a young universe...
...Many people assume that time flows at the same rate in all conditions. At first, this seems like a very reasonable assumption. But, in fact, this assumption is false. And there are a few different ways in which the nonrigid nature of time could allow distant starlight to reach earth within the biblical timescale...
...Another way in which the relativity of time is important concerns the topic of synchronization: how clocks are set so that they read the same time at the same time.4 Relativity has shown that synchronization is not absolute. In other words, if one person measures two clocks to be synchronized, another person (moving at a different speed) would not necessarily measure those two clocks to be synchronized. As with time-dilation, this effect is counterintuitive because it is too small to measure in most of our everyday experience. Since there is no method by which two clocks (separated by a distance) can be synchronized in an absolute sense, such that all observers would agree regardless of motion, it follows that there is some flexibility in how we choose what constitutes synchronized clocks. The following analogy may be helpful...
...One of the most overlooked assumptions in most arguments against the Bible is the assumption of naturalism. Naturalism is the belief that nature is “all that there is.” Proponents of naturalism assume that all phenomena can be explained in terms of natural laws. This is not only a blind assumption, but it is also clearly antibiblical. The Bible makes it clear that God is not bound by natural laws (they are, after all, His laws). Of course God can use laws of nature to accomplish His will; and He usually does so. In fact, natural laws could be considered a description of the way in which God normally upholds the universe. But God is supernatural and is capable of acting outside natural law...
...Many big bang supporters use the above assumptions to argue that the biblical timescale cannot be correct because of the light travel-time issue. But such an argument is self-refuting. It is fatally flawed because the big bang has a light travel-time problem of its own. In the big bang model, light is required to travel a distance much greater than should be possible within the big bang’s own timeframe of about 14 billion years. This serious difficulty for the big bang is called the “horizon problem.” 6 The following are the details...
...So, we’ve seen that the critics of creation must use a number of assumptions in order to use distant starlight as an argument against a young universe. And many of these assumptions are questionable. Do we know that light has always propagated at today’s speed? Perhaps this is reasonable, but can we be absolutely certain, particularly during Creation Week when God was acting in a supernatural way? Can we be certain that the Bible is using “cosmic universal time,” rather than the more common “cosmic local time” in which light reaches earth instantly?...
http://www.answersingenesis.org/articles/nab/does-starlight-prove