user: Given this paragraph about Gheorge Hagi, tell me which were his top achievements in the Romanian football team.

assistant: Gheorghe Hagi is arguably the best Romanian football player holding the record for most goals scored with the national team. He participated in 3 World Cups and 3 European Championships and he was awarded a spot in the World Cup All-Start Team in 1994.

user: In the United States, what type of degree is typically earned before starting graduate school?

assistant: A Bachelors degree is earned before commencing grad school

user: Who says Pi is Wrong?

assistant: In the early 21st century, Bob Palais (a mathematician) and Michael Hartl (a physicist) declared that Pi, the traditional circle constant, was wrong.  Their argument is that Pi, defined as the ratio of a circle's circumference to its diameter, is not the most effective or clear way to describe the geometry of a circle.

Palais and Hartl contend that the ratio of a circle's circumference to its radius is a more useful constant.  They chose to name this new constant Tau.  Arithmetically, Tau = 2*Pi.

They argued that Tau produces cleaner mathematical equations throughout physics, mathematics, and statistics and, further, that it makes it easier to teach trigonometry and analytic geometry to new learners.