"... One key element to debate is randomness ..."I'm not so sure randomness is the key. Randomness can be also be thought of as "absence of pattern". For me the key question to ask is to ask what role chance plays in formation of startups? Is it really chance or something process we can't yet fathom?
The last paper written by Alan Turing, "The Chemical Basis of Morphogenesis," [0] ~ http://www.dna.caltech.edu/courses/cs191/paperscs191/turing.... attempted to answer the theoretical explanation of the biological process that defines the shape of an embryonic organism from creation. This process is called "Morphogenesis" [1] This is an important problem because complex organisms appear to be created by some "random" process that organises what appear to be self similar cells.
A lot of recent work has been done to experiment Turings ideas on "reaction-diffusion" processes describing morphogenesis in biology and other natural systems to see if a) they can be reproduced in the lab and b) mathematically model them. [2] This begs the question, "what is the Morphogenesis of startups?" and can the same maths Turing used to describe the process be applied to startup formation?
There is a pretty good broad outline of Turing and Morphogenesis in a BBC documentary, "The Secret Life of Chaos" [3] by Professor Jim Al-Khalili on Youtube. [4]
[0] Alan Turing, "THE CHEMICAL BASIS OF MORPHOGENESIS",
http://www.dna.caltech.edu/courses/cs191/paperscs191
[1] Morphogenesis, "the Greek morphe shape and genesis creation, literally, "beginning of the shape", is the biological process that causes an organism to develop its shape.",
http://en.wikipedia.org/wiki/Morphogenesis
[2] Brandon Keim, Wired, "Alan Turing’s Patterns in Nature, and Beyond"
http://www.wired.com/wiredscience/2011/02/turing-patterns/?p...
[3] Jim Al-Khalili, BBC, "The Secret Life of Chaos"
http://www.bbc.co.uk/programmes/b00pv1c3
[4] Jim Al-Khalili, et,al, Yahoo,
http://www.youtube.com/watch?v=uF7gdlTrCQY