Some old work simulating ageing as the failure of series/parallel recursive networks
Lucas was a research project I worked on in the late 1990s and early 2000s on modelling ageing in biology as the failure of a recursive network of elements. A recursive network is one where you make the network by starting with a simple network, and then replacing every element with that simple network, and then replacing every element again by the simple network and so on.
The network is 'alive' if there is a continuous path through it, 'dead' if there is not. It turns out that such networks model several features of the epidemiology of age-related disease if you justa ssume that network elements fail entirely at random. This is what the project was to do. I wrote a few papers on this, but subsequent work ground to a halt because of more pressing financial concerns.
My very old web site on Lucas is here. Please treat this as an archive, and not really part of my live web site!