A military drone has 3.5 million lines of code inside. That’s roughly three times as many as we find in bacteria, meaning that mankind has, at least by one metric, constructed semi-autonomous machinery more complex than life itself.
Interestingly enough, you’ll note that software is not getting longer as time goes on. Windows Vista (2007), for instance, had 50 million lines of code, while Windows 7 shaved that figure down to 40 million. […] Meanwhile, mobile operating systems like Android have been engineered as ultra lightweight, built from just over 10 million lines of code.
But be sure to read the graphic all the way to the bottom. The kicker is a doozy.