OK, I guess when I say, "self taught" I mean learning from experimentation, reading books, talking to other people informally, etc. -- Jeri did plenty of that.
You mean from "first principles?" Yeah, sure, I agree with you there, but its been hundreds of years since any significant number of people were then truly "self taught." I think my definition above is what most people now consider "self teaching," and there are many people out there today designing programmable logic devices, radios, software, etc. who took this route. I agree with you that it's generally not as "secure" of a "career path" as the traditional college route is.
I suppose I rant about this a little because I think parts of industry does itself a disservice by requiring a sheepskin just to get a job interview; many talented would-be designers remain underemployed due to this practice, and as a country it makes us less competitive.
---Joel