Of course that you should always look for new work when you are still employed, unless in rare cases when you have hell. But as interview is interrogation, its

Of course that you should always look for new work when you are still employed, unless in rare cases when you have hell. But as interview is interrogation, its unpleasant and its doubtful how much do you learn about opportunities or how high is your chances of success with taking into account lost time and energy. Making it perpetual sounds like a horror to me, and that is true for me even from the position of power. I'll rather go different route any time if possible.