Lead is primarily formed through the radioactive decay of heavier elements like uranium and thorium, with the majority of natural lead being the end product of these decay chains, creating stable isotopes of lead (Pb-206, Pb-207, and Pb-208) depending on the original decaying element; essentially, lead accumulates over time as these heavier elements naturally break down. The existence of lead disproves this statement, and if you have proof otherwise, present your evidence and collect your Nobel Prize.