what is the relationship between the number of events (causes), number of outcomes, and number of risk scenarios? suppose you only have a finite amount of time to do analysis, say to study 128 scenarios. how does increasing the number of possible outcomes (and outcome dimensions) affect the number of causes of harm you can consider? how does increasing the number of causes of harm affect the number of outcomes you can consider? what general rule can you deduce from this thought experiment given you have only a finite amount of time and resources to do analysis? why calculate the number of scenarios?