Everybody knows that according to the Abrahamic religions, God created everything in 7 days. He rested on day 7 (Saturday or Sunday?), so we are down to 6 days. On day 1, he created three things, Heaven, Earth and Light. On day 2, God said, “Let there be a vault between the waters to separate water from water.” So God made the vault and separated the water under the vault from the water above it. And it was so. God called the vault “sky.” And there was evening, and there was morning—the second day. In some translations the 'vault' is called a 'firmament', which he calls 'Heaven', but this can't be right, because we already know he created Heaven on day 1. Modern believers have managed to work out that the sky isn't Heaven, because Heaven is some special spirit world outside of the material world. So what exactly is the 'vault' and what are the waters ? There is a clue later in the Bible. We are told that God opened the windows in the vault, to let the waters above fall through, to flood the earth and kill all life (except those fortunate enough to get on the Ark). Perhaps the waters below are the oceans, lakes, rivers etc. and the waters above was thought to be some kind of reservoir, from which we get rain when the windows are open. I suggest that this 'vault' doesn't really exist. This means God did nothing on day 2. So we are down to 5 days.