So since you're so perfectly catechized (looking at your next post), you obviously know the correct answer, which is that the Mass is a sacrifice, but 150 Masses aren't 150 sacrifices but one, because the Mass is a true participation in only one sacrifice, that of Calvary.
So -- since you're perfectly catechized -- you must then know that White is gravely wrong. Yet you post his junk. Why?
Too many non-Catholics don't understand either time and eternity or God's eternal now.