 Other critics deny that What is Metaphysics? suffers from an absence of meaning. Just the reverse: they think Heidegger’s passages about nothing involve too many meanings. When Heidegger connects negation with nothingness and death, these logicians are put in mind of an epitaph that toys with the principle of excluded middle: Mrs Nott was Nott Alive and is Nott Dead. According to these critics, Heidegger’s writings can only be understood in the way we understand the solution to equivocal riddles: