Ask HN: Backup plan(s) for a CS major?

I'm an undergrad at UC Berkeley, and the reason I chose it was for it's outstanding EECS program (electrical engineering and computer science). However, there are lot of people back home and in other places who view the current demand for programmers as a "tech bubble" and they don't expect the "dreams" of Silicon Valley to last. I know programming itself will always exist, but how do I adapt as/if the bubble collapses? Any suggestions on other career paths that would find my CS experience valuable?

I love programming in itself, but I don't want to regret my major choice because I blindly followed the crowd with no backup plan.