Is Young Earth Creationism Scientifically Viable?

Young Earth Creationism (YEC) holds that God created the universe in six literal 24-hour days approximately 6,000 to 10,000 years ago, as derived from a straightforward reading of the Genesis genealogies and creation narrative. Proponents argue that the Hebrew word "yom" in Genesis 1, when accompanied by a number and the phrase "evening and morning," consistently means a literal day throughout Scripture. They point to organizations like Answers in Genesis and the Institute for Creation Research, which present scientific models — including catastrophic plate tectonics, accelerated nuclear decay, and flood geology — as viable alternatives to mainstream geological and cosmological timelines. Critics, including many evangelical scientists, argue that the overwhelming consensus across geology, astronomy, biology, and physics points to a universe approximately 13.8 billion years old and an Earth roughly 4.5 billion years old. They contend that YEC requires dismissing or reinterpreting vast bodies of evidence — from radiometric dating and the cosmic microwave background to the fossil record and genetic evidence — and that doing so undermines the credibility of Christian witness in the public square. Many old-earth Christians maintain that Genesis was never intended to be a scientific textbook and that its theological truths are fully compatible with an ancient universe. At stake is not merely an academic question but a pastoral one: How should Christian communities engage with scientific inquiry? Does faithfulness to Scripture require adherence to a young earth, or does it allow — or even demand — integrating the findings of modern science into a robust theology of creation?