<p>I wouldn’t even say it that broadly, it really, really depends on the double. If there’s a lot of overlap between the departments, it might not actually take any more classes – you could just use your elective credits in each department to take classes in the other. I don’t think my 9/7 double would actually have taken more than 4 classes per semester if I hadn’t had to take extra units because of the old requirements.</p>
<p>But I suppose many or most doubles under the new system will require at least a few semesters of 5-6 classes. This is more difficult to achieve than it probably sounds – a 5-class semester at MIT is almost never trivial.</p>