Wolfram, Stephen. A New Kind of Science. Wolfram Media, 2002. [1]
Wikipedia:
"The thesis of A New Kind of Science (NKS) is twofold: the nature of computation must be explored experimentally, and the results of these experiments have great relevance to understanding the physical world.
[...]
[Wolfram] argues an entirely new method is needed to do so because traditional mathematics fails to meaningfully describe complex systems, and there is an upper limit to complexity in all systems."
Wikipedia: "The thesis of A New Kind of Science (NKS) is twofold: the nature of computation must be explored experimentally, and the results of these experiments have great relevance to understanding the physical world. [...] [Wolfram] argues an entirely new method is needed to do so because traditional mathematics fails to meaningfully describe complex systems, and there is an upper limit to complexity in all systems."
[1]: https://www.wolframscience.com/nks/