I cringe everytime I see a graph that is being used by someone as proof of validity. Everytime I see one I always think who is trying to sell what here or who stands to profit if this graph is used. These types of "proof" in conversation tend to be part of a "Failed Logic" assertion.

"As much as I agree with the general idea of poverty we have to aknowledge that it has been greatly eliminated and will keep improving."

I agree that it has been greatly REDUCED since say the Fifteen Hundreds, greatly eliminated, no. Based on what I have read and seen in my lifetime it will certainly not "keep improving".
Read More, Reason More ... JTS