Breaking the task list into smaller sections helps prioritising. Rather than asking the user to prioritise all of their tasks, we’re asking the user to identify their top three tasks. These are the 3 most important things they should be working on. If they’re working on any other task, they should think of whether that’s the right thing to do. Whatever else is below the top three can wait until they’re ready to move on. Some users want to see past the top 3, so thinking of the next 5 is good practice. Again, don’t try to sort all 50 tasks to decide what’s least important, focus on what’s most important and the rest will follow.