It's too easy to fake skill if you let the interview candidate talk about whatever they want. A lot of PhDs who can't really program will sound great if you let

It's too easy to fake skill if you let the interview candidate talk about whatever they want. A lot of PhDs who can't really program will sound great if you let them control the topic, but ask them to write code to find the most frequent word in a page of text and they will be stumped.