What makes you think this ?
Before we can answer that, first you'd need to answer the following:
Do you believe that there is a real world of objective and observable phenomena?
Let me offer a concrete example of what I mean: If I look with my two eyes and see an orange in a fruit bowl, and I take that orange into my hand, peel that orange, then eat that orange--it tastes like an orange, it's juice, sweet, a little tart. Did that actually happen? Was the orange real? Did what I see actually exist? Is what I did something that really happened?
Now, something more broad: Does the world actually exist? Are the things I see actually real? Are my perceptions of the world--through my eyes, my nose, my sense of touch, etc--real? Is this an objective, real, actual world with real, actual, and objective existence. And can anything be known about it through direct observation, direct experience, and by learning about it?
Is the world
real, or is the world an
illusion?
Because if the world is real, then we can learn about the world through observation, experience, and methods of testing.
But if the world is not real, but merely an illusion of some kind, then all of that goes out the window.
So we first have to establish whether the world is real, and if it is real, then we can probably find a way of testing its age. And if there is a way of testing its age, and if that is found out through objective standards of testing, with repeated consistency, then we can therefore have a reasonable sense of age and knowledge about it.
But that relies on the world being real.
And if the world isn't real, then we have more problems to worry about than arguing about how old everything is.
-CryptoLutheran