Ask a scientist what the world is made out of, and he or she may talk about atoms or molecules, or quantum mechanical wave functions, or possibly strings or vacuum fluctuations, depending on the level on which one want to focus. Diverse as those answers may be, they all have in common that they borrow elements from descriptions of building blocks of nature, as used already within contemporary physics. Now propose to a scientist that everything could be seen as `made out of experience', or at least, for starters, as `given in experience.'