Hmm technology

A few days ago we watched two videos about the future with technology and how it is good for us and how it is bad for us. Also for whats going to happen when we depend on technology too much and not enough. Many things that might not even become a real treat unless invented.
one thing the video said that really hit me in the gut was the part about college...
"by your fourth year of college everthing you have learned will be obsolete." that could really hurt some people if they knew; they would probably stop trying at what their trying to achieve.
Another thing that hit me was that most of the things that kids are learning today is training for the jobs in the furture that DON'T EXIST YET! that is kind of scary to think about...