Replication in computing involves sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility. wikipedia 
Croquet is based upon the concept of replicated computation [⇒Computational Irreducibility] – rather than replicated data. Croquet is based upon a synchronized message passing model, where the messages themselves ensure that the replicated systems remain consistent between machines. Though it is necessary to synchronize the world state of a new user by transferring the current contents of the world, after that, the worlds stay consistent only through the creation and processing of Time Based Messages. (System Overview wayback )
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– https://liacs.leidenuniv.nl/assets/Bachelorscripties/2009-06SjaakWolff.pdf
– https://wwj718.github.io/post/img/Croquet%20Programming%201.0B.pdf
– https://cyber.ee/uploads/ilja_livenson_msc_d7c2ef2b32.pdf ⇒ Project Wonderland
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DOT FROM lambda-browsing