Stop going in circles: the impact of local events is not just a simple sub-element of the validation process.
For many, a specific event is the main reason for the trip, the starting point, not a secondary variable to validate.
When a union congress is planned, for example, the destination and dates are set by the event, everything else adapts to it.
It is the tail wagging the dog, not the other way around; a decision must be made about this priority.