If there is a convergence of taste, that would imply everyone wants the same thing. Prices would go up due to law of supply and demand. Conversely, the opposite would happen in a divergence of taste for a specific good or service.
The reduced demand for a given item would result in lower prices. Maybe your question did not translate correctly. But I hope I have answered your question.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.