Non-linearity, non-algorithms, Turmites and Turing Machines.

''Studies in non linear problems (Fermi, Pasta, Ulam)'' 1965 [source]

''Emergence as Leverage and Non-Algorithmic Approaches in Agent-Oriented Software
...
IT environments, except for some trivial applications, are now open and heterogeneous (the resources involved are unalike and their availability is not warranted), dynamic (the pace of exogenous and endogenous changes is high) and uncertain (both information and its processing rules are revisable, fuzzy, uncertain and intrinsically non-deterministic - as every stimuli generator). Indeed, in the Internet era of "computing as interaction" [...], deterministic applications are practically vanishing.'' [source and here and here too]

''Turmites are hypothetical creatures that live on a virtual world made of squared paper.'' [source]

''ON COMPUTABLE NUMBERS, WITH AN APPLICATION TO THE ENTSCHEIDUNGSPROBLEM.
By A. M. TURING (Received 28 May, 1936.—Read 12 November, 1936)'' [source]

'''' [source]