Why does the Olbers paradox suggest that the night sky is dark despite the countless number of stars in the universe?

The Olbers paradox suggests that the night sky is dark despite the countless number of stars in the universe because the light from distant stars may not have reached us yet, or it may have been absorbed or scattered by dust and gas in space. This means that not all the light from all the stars in the universe reaches Earth, resulting in a dark night sky.