I've run into more than a few fundamentalist Christians who have insisted that the Earth is only 6,000 years old. "Then please explain the results of radiometric dating," I typically ask, adding that even carbon dating can accurately date materials up to 60,000 years old, far older than 6,000 years. Most modern savvy Young-Earthers won't fight me on the general usefulness or accuracy of carbon dating. Instead, they will insist that A) God has created an Earth that only looks like it is billions of years old, and B) I need to have faith. That is how they would explain everything older than 6,000 years old, including the Old Tjikko tree in Sweden, which certainly appears to be 9,550 years old. God must have transplanted it from another universe when he made this universe. The Young-Earthers thus offer an provocative argument. I don't believe it, but there's would be no way for me to disprove it.