<p>It is absolutely allowed to combine any two majors at MIT for a double major. (Technically, it’s a “dual degree”, I think, because two physical diplomas are awarded upon completion.) A single major at MIT requires 180 units (15 classes) beyond the General Institute Requirements, and a double major requires 270 units (22.5 classes).</p>
<p>The difficulty of a double major depends on a) which two subjects they are, b) how flexible the requirements for each major are, and c) how much AP/college credit you come to MIT with. Personally, I came to MIT with almost no college credit and completed a double in two science subjects, but I chose two subjects which were very flexible. I was also okay with having several heavy terms.</p>
<p>Physics is usually considered an easy double in terms of the structure of the major – if you take the “flexible option” outlined [here[/url</a>], you can pick and choose your classes and even take non-physics classes for your physics degree.</p>
<p>According to the [url=<a href=“Statistics & Reports | MIT Registrar”>Statistics & Reports | MIT Registrar]second</a> major statistics](<a href=“http://web.mit.edu/catalogue/degre.scien.ch8.shtml]here[/url”>http://web.mit.edu/catalogue/degre.scien.ch8.shtml), both physics and EECS are popular doubles.</p>
<p>A disadvantage of a double major is that it may leave you less free to take electives in other departments. There will also likely be terms where you would have to take more classes than perhaps you’d like to take. There are not generally restrictions on classes at MIT, so you’d be free to take physics or EECS classes whether or not you were a registered major.</p>