By using Internet on differences between rational and irrational decision making. These terms are not static and are comparatively fluid.
For this project think fact that at one point in US history decision to own slaves was considered rational and informed. Today we would consider decision to own slaves "irrational".
For this project recognize one other ex of decision (past or present) which was once considered "rational" but which is now reviewed as "irrational". Do not analyze personal decision but one from published or academic source.
Describe, in detail, why decision was once considered "rational" but would now be considered "irrational".