Since last September I have been working hard on my applications, applied to multiple good CS departments yet none of them even wait-listed me, all rejected me, I have also got rejected informally by supervisors I approached. Now I know I am not an established researcher in this field, I did not...

This is a question that has bothered me for a long time. In traditional courses taught at most colleges, the primary method of instruction is lecturing, where the professor delivers and explains a set of well-established knowledge to the students. IMHO, lectures are outdated because of the overab...