And what happens if your time-estimates are wrong; or unbounded? You have two tasks (one Urgent, one Important) and 10 days at your disposal. If each task tak

And what happens if your time-estimates are wrong; or unbounded? You have two tasks (one Urgent, one Important) and 10 days at your disposal. If each task takes at least 4 days, which one do you do first? > But the point is that when adding a task to your to-do list you don't yet necessarily know what that future context will be. I am not talking about pushing tasks on the queue. I am taking about popping them off the queue. If you don't know how long a particular task takes how do you decide whether to pop a task off your Urgent or Important queue? Just-in-Time prioritisation under uncertainty is hard.