The story in which this background is embedded is about Erdös and Guy getting a cup of coffee, so it doesn't seem unreasonable, and is entirely factually accura

The story in which this background is embedded is about Erdös and Guy getting a cup of coffee, so it doesn't seem unreasonable, and is entirely factually accurate, to mention first Erdös's reliance on coffee to fuel his inexhaustible mathematical energy, and then to acknowledge other drug abuse.