  The shallow and fragile knowledge on the Web does not examine in depth the
things: it behaves lightly. The conditions created by the Web makes our
attention labile and especially fickle, it's unable to concentrate for long as
we are trained to "surf" without going though never in depth. The Web also
brings with it the added advantage of a nearly availability infinite knowledge
but leads to a loss of the ability to retain and evaluate that knowledge within
us increasing forgetfulness of knowledge. In this paper we show how the
"function of forgetfulness" appears linked to tedium and oblivion of knowledge
through the liquidity of ontology matching.
