Heidegger meant by the forgetting of Being

Heidegger's being-toward-death reveals

Heidegger's being-toward-death reveals finitude as the condition for authentic existence

Martin Heidegger

Martin Heidegger's magnum opus, Being and Time (1927)

Dasein

Dasein means 'existence' in German

Heidegger's concept of authenticity means

Heidegger's authenticity means owning your existence rather than drifting in das Man

Heidegger means by 'thrownness' (Geworfenheit)

Heidegger's 'thrownness' (Geworfenheit) refers to our inevitable situation in life we didn't choose

Wittgenstein's later philosophy argues

Wittgenstein's later philosophy posits: "Meaning is use, not reference."