 As we saw above, for determinism to be true there have to be some laws of nature. Most philosophers and scientists since the 17th century have indeed thought that there are. But in the face of more recent skepticism, how can it be proven that there are? And if this hurdle can be overcome, don’t we have to know, with certainty, precisely what the laws of our world are, in order to tackle the question of determinism’s truth or falsity?