Possibly the greatest factor in determining how long it will last is how the money was acquired. If it was earned over a lifetime of work, it will probably last the remainder of the person's life, and there will be an estate left for heirs. If it was acquired suddenly, like an inheritance, or winning the lottery, then not long.
The person wouldn't have the skills to manage it.
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.