Why would you believe that? 16 Billion years is only a long time to us. How can even a Trillion years be a long time to the Being that created time and space?
Like any artist creating a masterpiece, God has made sure the Frame is worthy of the Picture. The majesty of created time and space does honour to us, who stand at the focal point of His great work. Time and Space are part of His creation, not a constraint under which He must work.
The earth was PLACED where it is so that we could discovery Creation (and glorify God in our discovery).
The atmosphere is made up of life sustaining chemicals that are transparent for discovery purposes.
The moon is exactly the right size and distance to sustain life, and for discovery purposes (perfect eclipses).
The gas giants are located in the right place to shield our earth from bombardment.
The sun is the right type of sun, a singular sun, and we are at the right distance from it for life. The earth rotates so that we may study the sun and discover the rest of the universe at night.
Our sun in located in the right place in the galaxy so that life can exist and rocky planets can form. It’s located between spiral arms so that we can see the rest of the universe unobstructed.
Our galaxy is the right type of galaxy (spiral) for discovery and life.
An accident, all of it.