I don't disagree about the complicity. However, biology and statistics, even at intro level, have had significant updates in material covered over the last 10-20 years.
More subtly, terminology changes. My copy of Rudin's Principles of Mathematical Analysis is just as correct now as it was when it was published in 1976, but I remember one of my professors describing the terminology as somewhat dated, as of the late 2000s.
More subtly, terminology changes. My copy of Rudin's Principles of Mathematical Analysis is just as correct now as it was when it was published in 1976, but I remember one of my professors describing the terminology as somewhat dated, as of the late 2000s.