A fairly recent CS grad, and I work mostly in C++ or C, though I occasionally have to branch out and poke my head in bash, Python, C# or whatever happens to be holding the work process together today.
I know enough to generally get by, and if not I'm rarely doing something so complex that it hasn't already been answered somewhere on the Internet (I usually know enough about what I'm doing to give Google the right set of keywords - if I'm asking something here, that probably means I don't know what I don't know). Equally, for any given topic there's guaranteed to be someone who knows the subject much more in-depth than me.
That means that I get to pick up new nuggets of information every time I show up here, and occasionally get to impart nuggets of knowledge I've picked up to someone else. I'd draw a graph of nugget transfer over time, but I am unable to determine the coefficients at the part of the graph that's in the future.