Software isn't like that. Software has to describe a process unambiguously and exhaustively. There is no option to say "and now you do X" while leaving X undefined.
Software can't be simpler than the process it describes, it can only provide a simpler interface.
Redundancy can be achieved through multiple independent systems, e.g. repeating the encoded text in multiple locations; such an approach is not holographic, though. Parity is a more holographic encoding scheme in that redundancy comes from the interaction of multiple pieces of encoded text.
The term is even more applicable when talking about convolutional neural networks in which every neural node significantly contributes to every encoding. Here the similarity to optical holograms becomes quite apparent.
Also, evolution selects for robust code.
For example, these systems solve indefinite integrals without having to apply numerical methods with an infinite number of steps: http://www.integral-calculator.com/ http://maxima.sourceforge.net/ https://www.wolfram.com/mathematica/
Maybe not at runtime, but you seem to be describing lambda functions.