[delwin]

> You're blind to the box you're currently living in.

I definitely feel this all the time. Just about the time I start feeling comfortable building webapps, I step back and see _all the programming_ I'm not doing. Writing webapps in Ruby, Python, PHP, JavaScript in any number of flavors (Rails, Django, Flask, web.py, node, Backbone) still has the same feel, because it's all for the web; there's a common goal.

"Sprachgefühl" is perhaps a useful word here — having a "feel" for languages is all you need to start learning new ones. It's even truer for programming than it is for natural languages.