Quite true, but the game on this topic is to get a creationist to pick one from the list and suggest a falsification test, and then refute it.
Note that doing a "blind" test on a 70,000 year old specimen would return a result in the 45,000 to 50,000 year old
minimum age range and Brown goes "AHA!!
not 70,000! the method is false!" and break his arm patting himself on the back.
welcome to the fray.