When Creationists are confronted with the starlight problem (how can distant starlight more than 6000 light-years away reach our eyes in only 6000 years), a common response they give is that God created the starlight mature so it would reach us. This implies that the starlight was created for specifically for us. This idea is confirmed by Genesis 1:14:
"And God said, “Let there be lights in the expanse of the heavens to separate the day from the night. And let them be for signs and for seasons, and for days and years."
Current estimates say that there are about 100 billion stars in the Milky Way galaxy, which is only one of 10 trillion galaxies. If you do the math, this means there are 10 septillion stars, or a "1" with 24 zeros after it. For comparison, we can only see about 9096 stars with the naked eye, during the best conditions.
So we can only see an infinitesimal fraction of the stars in the sky. If the all the stars were created for signs and seasons, how come most stars we cannot see and will never see? It would seem absurd to say that God created every single one of these stars as signs for us, when we cannot even see most of them them. So it seems the stars weren't created for us.
Furthermore, why would God fool us by making the universe appear much older than it really is? The Bible tells us that God reveals his nature through his creation.
Psalm 19 reads,
“The heavens declare the glory of God, and the sky above proclaims his handiwork. Day to day pours out speech, and night to night reveals knowledge. There is no speech, nor are there words, whose voice is not heard.”
Romans 1:19-20 reads,
“For what can be known about God is plain to them, because God has shown it to them. For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse.”
So according to the Bible, God leaves a plain, clear record on Creation. To say that God created starlight mature, so that it appears much older than it really is, is the opposite of clear. This would mean God is a trickster. If the universe was 6000 years old, one would expect that God would have created it so that light ONLY from 6000 light-years away would reach us, so that there would be no confusion. If God is a trickster, how can we trust him to keep any of his promises? (Hebrews 6:18)
The hypothesis that God created the universe with misleading signs of age, is unscientific because it is both unverifiable and unfalsifiable, through any conceivable scientific method. It is impossible even in principle to test it, because the results of any test could be explained away by saying that God created the results to look the way they do.
Occam's Razor devastates this hypothesis--since the conclusions are counter-intuitive and can only be arrived at if we assume that Genesis is literally accurate, and that a personal God would want to fool us.
 (Job. 36:24-25; Romans 1:19-20; Ps. 8:1-3; 19; 97:6.)