One of the teleological arguments for God's existence comes from the combination of the incredible complexity and large variation of life and the cosmologically minute amount of time that is permitted by this universe to accomplish such a feat. Astrophysicist Hugh Ross explains:
"As astronomical advances proved the universe to be some 10 to 15 billions years old a majority of both scientists and Christians mistakenly assumed that billions of years allowed ample time for a naturalistic account of life. This error has been costly. Recent scholarship increasingly reveals that time boundaries as brief as only several billions years constrict evolutionary theory so tightly, particularly concerning life's origin, as to strangle it. In other words, a 14-billion-year-old universe is too young for any conceivable natural-process scenario to yield on its own, even the simplest living organism."
Dr. Ross has spent the last few decades studying the universe and what must be in place for it to be hospitable for life's creation and thriving. It turns out that the full age of the universe is not the total amount of time available; indeed, the time is much shorter (nearer to 4 billion years). This constrains the naturalistic process even further. But even if it did have the full age of the universe, 14 billion years is several orders of magnitude too young.