Outstanding explanation, +1 and thanks for blowing my mind. I find myself sorely tempted to drop everything and throw myself into this exciting new world. One t

Outstanding explanation, +1 and thanks for blowing my mind. I find myself sorely tempted to drop everything and throw myself into this exciting new world. One thing that always bothers me with these xyz.js technologies; Is there an explicit or implicit implication that they are actually implemented wholly or partially in an actual file called xyz.js ? In the particular rather than the general; Is there actually an important javascript source code file involved called asm.js ?