A friend recently sent me a long, careful argument for reading Genesis 1 as evidence of a pre-Adamic age, one in which Satan ruled and ruined an earlier earth before God's six-day creation week restored it. He built the case out of real texts: Isaiah 14, Ezekiel 28, Job 38, Luke 10:18, Revelation 12, and a set of striking numerical patterns in the Genesis 5 genealogies. It is a serious argument, made by a serious reader, and it deserves a serious answer rather than a dismissal.
I want to walk through that answer here, because the questions underneath it, what the firmament actually is, what "without form and void" actually means, and whether Scripture ever hands us a chronology for Satan's fall, come up again and again in these conversations. Getting them right matters more than winning a particular exchange.