ExSpirdKyx I take your questiom on myself, cosplay @Beater ".
nowadays the economic is pretty hard, because money seemed stopped flowing. If I cosplay basic math major students, actually they always go to the area of education, and which is like real estate in center of top city in China, it is pretty at the bottom, seems like a first industry though it is in fact the top industry, maybe third as the Western would say.
As for the data for percentage of math major's going to where to study, actually, they go anywhere, so you are right, math major never suffer
You feel that if one day a cs major student became old and being replaced by young talented science major who has entered tech major in an old age, that is possible if you built a solid station for them to stand on, just like Newton (physics, discovered the gravity)'s word: I stand on the gaint's shoulder
Sorry for talking randomly, go back to "cs major being replaced by math major", that happens only if they stand on your shoulders, but if you have protection of your technique like patent (专利), you are ok, which means, you should try to replace those just studying the theory, and doing work theoretically, to be more specifics, try to be a teacher, teach kids by simple ways of talking, not texting, I mean talking
In fact nowadays the Phonemic (I spoke the wrong word of phanatics, which is officially, phanatical 狂热的, new English word due to Chinese translation tools) enter function Is pretty good,Thanks to your work