Out of all the ideas posted on this thread, the two that I'm throwing my support behind are:
1) Moon, Fish, Ocean being a so-called Zen variation of Rock Paper Scissors, where the disciple must have a certain non-attachment to the outcomes of each play in order to be mindful to grab the pebble and ultimately win whenever the master plays Ocean.
2) With the backwards text and all, realizing that fish backwards is HSIF (Hybrid Systems Interchange Format), defined on
http://repo.isis.vanderbilt.edu/definitions/ as "an interchange format for hybrid system models that can be shared between modeling and analysis tools. HSIF models represent dynamic systems, whose dynamics includes both continuous and discrete behaviors."
"Both continuous and discrete behaviors" sounds to me like dynamics that a robot would need to be mindful of, so to speak, if it were to play Moon, Fish, Ocean. A more specific prediction of game rules, I won't suggest, but I've heard that with the new control systems robots can communicate with each other, so maybe that will be a factor as well.
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"In this life we cannot do great things. We can only do small things with great love." -- Mother Teresa
"You give yourself to us, O Lord, then selfless let us be, to serve each other in Your name, in truth and charity." -- Robert E. Kreutz,
You Satisfy the Hungry Heart
"You have the right to work, but for the work's sake only. You have no rights to the fruits of work. Desire for the fruits of work must never be your motive in working. Never give way to laziness, either...Work done with anxiety about results is far inferior to work done without such anxiety, in the calm of self-surrender...They who work selfishly for results are miserable." -- from the Bhagavad Gita, quoted in
Educating Esmé