One of the major challenges confronting the young earth view has been the supposed ages of millions of years for the earth and dinosaurs—even billions for the age of the earth. One proposal that has been made by creation scientists to account for this seeming discrepancy between secular science view and the creationist view is accelerated nuclear decay (abbreviated herein as ACCND).
What is ACCND? I will explain this by analogy. Think of an hourglass. It is used to tell time based on an assumed rate at which the sand moves through the neck of the hourglass. The movement of sand is analogous to the decay of radioisotopes. If the rate at which sand moves through the hourglass were accelerated by temporarily widening the neck, allowing more sand to fall through faster, we would have a lot more sand in the bottom half. Someone might look at the hourglass and conclude, based on the large amount of sand in the bottom part (or the amount of radioisotope decay products in a specimen), that a long time had passed. Actually, only a short time would have passed.