- which Facebook (or my browser? Probably browser) refuses to
   accept as a valid word.
   *
   It's a tricky concept to get across to some people because they
   were trained in a way of thinking such as, "Well, if it's
   useful, it must have been designed by someone or something".
   *
   And they're right. I call it Happenstance. Happens to work. Why
   does mathematics correspond well to Physics? Happens to work.
   Why does mathematics correspond rather poorly to the
   complexities of other many other Sciences? Mathematics happens
   to not work as well as words in those cases.
   *
   I like the concept of affordances. I just wish my spellchecker
   liked it too. That red squiggly line is irritating to me.
   *
   [and if I've misrepresented a connection between affordances and