[Kurtz79]

If you work a couple of years in a "boring, corporate gig" and watch your spending carefully (i.e. rent a "decent enough" flat, buy a used and "working well enough" car, eating reasonably cheap), you should be able to save enough to support yourself for the same amount of time, in my experience (and I'm on a Spanish salary, considerably less than the equivalent in the US or nordic countries here in EU.)

Of course the whole time you must be prepared to sacrifice bits of your quality of life, before and during the bootstrapping period (hopefully not after).

I really depends on your goals in life.