Secular geologists have become more convinced in recent decades that catastrophic processes caused at least some of what we see in the record of the rocks and the fossils, whereas they once insisted that the present is the key to the past. The difference in their interpretation of the effect of catastrophism is that they believe multiple disasters over many millions of years formed the rock record, whereas the creationist puts most (not all) of the features we see today, including most of the fossil record, down to one colossal catastrophe: the Biblical Flood.