The Vredefort crater in South Africa is the largest confirmed impact crater ever discovered on earth at nearly 200 miles across. It is estimated that the crater is over 2 billion years old.
If you use the young-earth model, and the massive asteroid plowed into the earth some time in the last 10,000 years, history most definitely would have recorded it, and we would still see the effects of its impact today on the life of the planet. It would have caused mass extinctions and life would not have yet come close to recovering.
So ignore evidence and say the scientists are wrong. It's just that simple to Perry. Maybe he will say that God created the world with the Vredefort crater already there and dozens of other large craters already in it, for no other reason than to make us think the earth had been hit by massive asteroids when in fact, it never was. It's a test of our faith that goes right along with seeing light from stars that would take millions and billions of years to arrive on earth. God must have made it look that way to make our scientists look stupid.
The age of our old earth has been calculated to fit the deceleration of the earth by tidal friction, the distance of the moon from the earth, the amount of dust on the moon, the dating of fossils. You cannot simply ignore the facts that don't fit your model.