Investigating code deltas tells you nothing about HOW the code got there. It's there. Someone committed it. But WHY? Hence, the commit message. "new feature. f

Investigating code deltas tells you nothing about HOW the code got there. It's there. Someone committed it. But WHY? Hence, the commit message. "new feature. fix it. fixed. lol. WIP. COMPILES NOW" None of these tell you how the commits came to be other than that they are already there.