You don't see more than 80 year supply for most materials as they have stopped looking because there is more profit in looking for minerals that don't have 80 y

You don't see more than 80 year supply for most materials as they have stopped looking because there is more profit in looking for minerals that don't have 80 years of known reserves. If demand rose to where current reserves would last 6 years, people would going out in droves to look for it and developing new tech to find it.