This seems like a really useful technique and expansion of the empathy mapping and persona generation we have done for class. Even though it is important to look at the perspectives of all stakeholders that might be affected by the problem, I find the point of including someone complete outside of the problem really useful, too. It could be helpful to think about how others with no buy-in or biases might view the problem in a totally different light and be able to offer solutions, ideas, etc. that feel impossible, challenging, or too far-fetched for the parties directly involved.