I hate to sound alarmist but, I fear many younger tech people may not realize how lucky they are currently. If the economy turns south you are not going to get 38 job interviews unless you seriously have some needed skills.
Don't be like this guy and accept you are bad at interviews thinking there is plenty of opportunity. Don't blame the white board if every job in your field expects you to be able to white board. If you plan to survive during the next downturn or bubble burst you better be someone companies really want to hire. You may be lucky to land one job interview and it will be hard to stay motivated as months start to go by.