A.He thinks flies will take over the earth.
B.He thinks human will die off quite soon.
C.He thinks mass disease could be the next path to extinction.
D.He sees human beings as destructive.
A.A part of the free MIT OpenCourseWare.
B.A free computer programme by MIT and Harvard.
C.A Harvard-MIT platform of free online courses.
D.A free programme online for universities worldwide.
A.Universities have been trying online courses.
B.About 2,000 online courses have been offered.
C.Over 100 million people have finished courses online.
D.Stanford and Yale together have courses similar to edX.