A closer look
Imagine being so arrogant about your homemade spreadsheet that you correct someone else's lab results sight unseen. When Paul-Émile Lecoq de Boisbaudran discovered gallium in 1875, Dmitri Mendeleev read the paper and essentially told him his physical measurements were garbage because they didn't match the blank spaces in his periodic table. The worst part? The smug Russian was absolutely right. He had predicted the metal's density and melting point perfectly years before it was ever dug out of the ground.
