What is the most interesting topics ?

I think it is self-improvement. The world is filled with old and new problems. I think self-improvement will help more people to become what they are meant to be. It would be great if more young and even old people who will find their "critical purpose" in this life. - that I believe is to be able to deliver value to humanity in one form or another... For me, the most interesting topics will inspire people to be even better at what they do and, therefore, give the world the much needed help it needs. What do you think? Cheers