Presentation for an interview



I have a 4 hours assessment interview next week and this includes a presentation. I have done power point presentations before but in this case I am a bit puzzled with the presentation brief I was given: “take a complex subject of my choice from any field of my life and talk about it for 20 mins”. This is extremely wide and vague because I don’t even know where to start from… Also I am not sure what outcome they are after… Would someone please give me some tips from previous experience? Thanks!


How did you do? What topic did you chose in the end?