Making Things is a Fractal Process

/*
* All building and making of things involves a fractal (recursive) process
* like this pseudo-code:
* Takes a set of Requirements and returns something new
*/
public Thing makeNewThing ( Requirements requirements ) {
    Thing newThing = ();
    while ( requirements.not_satisfied ) {
        Things requiredPieces = requirements.whatCanWeMakeOneFrom;
        Things piecesWeHave   =
           this.whatDoWeHaveAlready(requirements,requiredPieces);
        Things piecesNeeded   =
            requiredPieces - piecesWehave;
        newThing.assemblePieces(piecesWeHave);
        foreach Thing neededPiece ( piecesNeeded ) {
            piecesWeHave.add( makeSomething(neededPiece) );
            newThing.assemblePieces(piecesWeHave);
        }
        requirements.check(newThing);
    }
    return newThing;
}

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