<p>I don't really get why there are no double majors at Princeton? Whats up with just being allowed one degree and certificates?</p>
<p>You would have to write up to four junior papers and two theses. Both the feasibility of that as well as the logistics of it make double majoring practically (though not totally) possible. Many certificates are practically majors (like visual arts), so it works out in the end.</p>