"Storage optimization in distributed environments is a major concern when talking about reliability in this kind of schemes. Although replication is the most used option, erasure coding is a more optimized one.
However, erasure coding uses a lot of bandwidth to replace one node. In a dynamic scheme, where nodes enter and leave the system frequently, bandwidth use could be an important drawback.
Regenerating Codes introduced by Dimakis et al. minimize the code repair problem by applying Network Coding to the distributed storage scheme. However finding the coefficients for the linear combinations used to replace a node is not easy, specially for the systematic case, and must be calculated for each new node fail.…"

"The results from the computational approximation of Physarum support the findings of [15] that the organism can be used to construct simple logic gates, and also the computing schemes within this paper which explored the creation of more complex combined gates and half adder circuitry. The findings suggest that, although such circuits can indeed be built, the presence of both timing errors and junctional (search) errors would severely limit the effectiveness and practicality with even more complex circuits."

"In fact, one food giant, General Mills, has essentially conceded that cooking their food in a microwave isn't good enough."