A question was asked here relatively recently about the ability of human's to come up with truly random numbers, and (in my opinion) one can meaningfully ask that same question regarding almost any system. My question is directed towards the deterministic opinion (though I know not all those who adhere to determinism would agree) that true randomness is not possible.
Considering the thought experiment known as Buridan's Ass, in which a perfectly rational ass (donkey) would starve to death when presented with two piles of hay that are exactly equidistant form the ass and perfectly identical to each other, because it cannot rationally choose one over the other. However, the 'rational' decision (for the ass with a sense of self-preservation, etc) is not to starve to death, but to pick any stack of hay at random. In a human equivalent, that human would perhaps flip a coin.
However, what if there was no coin to flip, or similar mechanism of deciding between two equally beneficial choices arbitrarily, when the alternative to choosing is a highly undesirable outcome? How, indeed, would the rational person save himself from starvation?