I don’t know to what extent this is possible but one should try. You have to unlearn all the junk and crap you have learned so far in your life. If you stick to know more about the things to which you are addicted, it will put you in a trouble. Few things have to be considered as historical stuff and moved to the trash.
The world is changing rapidly and every day there will be something new which you will come across. You should remain updated regularly and if your professional life asks you to get connected to the masses and you enjoy a multidimensional role, then this exercise is MUST.