4. The method of claim 1 , wherein determining a respective hypothetical context can involve: determining a distribution over weather conditions for the distribution over locations and the distribution over time; determining a distribution over context-related preferences; and/or determining a distribution over conditions related to the hypothetical context that may be inferred from publicly-available data about the distribution over other contextual variables.
4. The method of claim 1 , wherein determining a respective hypothetical context can involve: determining a distribution over weather conditions for the distribution over locations and the distribution over time; determining a distribution over context-related preferences; and/or determining a distribution over conditions related to the hypothetical context that may be inferred from publicly-available data about the distribution over other contextual variables. 9. The method of claim 4 , wherein determining the weather condition distribution can include performing a lookup to determine a distribution over forecasted weather conditions corresponding to the distribution of location and time.