1. At the end of day 5, we would not see any celestial objects (stars, galaxies, nebula, etc.) that are more than 1 light day away. When Adam looked up into the sky, he would not see anything further that 6 light days away. This means only the sun, the moon, and the planets. No stars would have appeared until 4.7 years after he was created. Even today we should only be able to see less than 10000 stars all of which are in our own corner of our galaxy. We should see no galaxies or any other deep space objects. The light from all these objects have only traveled 6000 light years in our direction. Yet we mysteriously can see galaxies that are more than 14 billion light years away. How?
Some suggest that God created the light between these far away objects and the earth. He essentially wrote a fiction, a book in the form of a light beam stretching from the object to earth. It would be a book of fiction because the things this beam of light is relating never happened. All the variations we are seeing today in celestial objects never happened. All these things we are seeing would have had to happen billions of years before the earth (or the objects) even existed.
2. Dinosaur Fossils. Also, If Adam had traveled to the nearest limestone outcropping, he would have found fossils that were millions and, in some cases, billions of years old. Limestone is made from the bodies of microscopic sea creatures. His descendants would have made powder from diatomaceous earth: the bodies of ancient sea creatures that died and fell to the sea floor millions of years before Adam existed. When Herod build his temple, he would have used limestone from quarries hundreds of millions of years old. None of these things should even exist.
3. Volcanic mountains. Adam would have found long dead volcanos. He may have traveled to the Siberian "traps" where billions of square meters of lava cover 3 million square miles of Siberia. These traps are estimated to be over 500 million years old.
4. If Adam perchance traveled to east Africa, he would have found human remains dating from 100 thousand to 7 million years old. He could have journeyed to Israel and France and found the remains of Neanderthal creatures that were very similar to modern man. He would have found cave paintings that were over 25 thousand years old. If he traveled to the Americas, he would have found the remains of the Clovis people, dated over 12 thousand years old. This people would have ceased to exist 8 thousand years before Adam existed.
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Essentially, Adam, upon leaving the garden of Eden, would have found an earth almost identical to the earth we see today.
The only resolution to this quandary is old earth creationism and theistic evolution.
