 Two qualifications are needed before we get to Lewis’s 1973 view of laws. It is collections of truths, not individual truths, that are measured and compared for simplicity and strength. And it is not every truth in the winning collection (or best system), but only the generalisations within it, that are laws. So even if the best system includes particular facts about the Big Bang or its immediate aftermath, e.g. that the early universe was a low entropy state, those facts are not laws on Lewis’s view.