It may be a little less painful than it seems at first glance. Like I said, a fair amount of the comics-tech is purely imaginary, or at least only speculative.

For example, in real life, nanotech means nothing more than "really small technology." Right now, they're still excited about microscopic caplets that can carry already-existing drugs into the system (you tag 'em with those tracer chemicals they use for X-rays and fill them with chemotherapy drugs, and they can home in on tumors for spot-treatment). The most elaborate robotics application so far is that they figured out how to bond RFID tags to bacteria, and they're not quite sure what to do with that yet.

Those are pretty cool, admittedly, but in the comics you have tiny AI-controlled robots and crud, which are way beyond anything we can even think of doing right now. To flesh that out, it's more useful to look into current sci-fi trends. Sci-fi authors are making it up just as much as you would be, but they do tend to be good at coming up with jargon and ideas you can run with.

I'm surprised Tony hasn't caught on to the idea of itty-bitty remote control nanites that he can command with his brain, though.

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