This strategy too has some limits, its not like you can keep interviewing forever. Most companies will flag you eventually if all you've done in your career is

This strategy too has some limits, its not like you can keep interviewing forever. Most companies will flag you eventually if all you've done in your career is write a 100 line bash script and leave every six months, in fact if they are a serious shop they'll likely not want to touch you with a 10 foot pole. The next problem of course is ageism, you are likely to enter that issue as soon as you are in your late 30s. Of course starting a family in your late 30s, or buying a home, getting fit just keep harder and harder with age. And being known and being used to being a drifter wont help much as you get older. Let's be honest this kind of a lifestyle demands making some lifestyle priority choices and getting very lucky early life, but even that has a cost as you age and its not exactly good.