Originally Posted by dragonrider
The original question in this thread was about whether there was any way to prove our memories really happened or were they just put into our minds --- is reality the way we remember it or just some kind of simulation. I think reality is pretty much the way we experience it, but I like the question anyway.
But it occured to me that some of the same kinds of issues come up for creationist ideas for the origin of the universe. I don't believe in creationism becasue there is so much scientific evidence for the age of the universe, the age of the earth, and the evolution of species. Some people who have tried to convince me of the creationist origin of the universe have told me that God created the universe only a couple of thousand years ago and he killed off the dinosaurs and other extinct species in the Great Flood, or that carbon dating doesn't work because the world was different in the past, or the Great Flood changed the chemistry. I never could believe any of that because of what I said earlier about the universe being internally consistent. I don't believe the laws of physics changed over time. Creationist ideas that involve the Great Flood or some other mechanism for obscuring the scientific evidence are not internally consistent with other scientific evidence. They are subject to scientific testing and can be disproven.
Other creationists have told me God created the universe only a couple of thousand years ago, but he put all the fossils in the ground and all the sedimentary rock and other geological and carbon date evidence in place as if the universe was much older. That idea is a lot more similar to what we are talking about here. As long as you think God created an internally consistent universe with a fake past that is consisitent with the evidence we see today, then there is no way to PROVE that he didn't create it a few thousend yeas ago, or even just a minute ago. From the point of view of PROVING it, there is no difference between that kind of creationist idea and the idea of a Matrix-like virtual reality. You can't prove either one is not true. Both ideas are outside of science because they cannot be tested.
If you want to believe the universe is internally consistent but is fake, then you should ask why. Why would God create a fake past and evidence for bilions of years of history if the universe was only a few thousand years old? Or why would some race of aliens create a virtual reality for us to live in? I can't really figure out a reason why God would not just either make the universe 15 billion yaears old or make it 6 thousand years old and leave it at that. There's no good reason to make it 6 thousand years old but make it look 15 biliion years old. But the aliens are a totally different thing! They might create a virtual reality just to keep us their willing slaves, or use our brains as batteries, or do freaky alien sex on us.