How does the Visit depicted in Roadside Picnic differ from visitations in other books and films about extraterrestrials? How does the fact that the aliens are neither hostile nor benevolent relate to the themes the authors wish to explore?

In the Foreword, science fiction author Ursula Le Guin writes that most science fiction narratives fetishize scientific genius by elevating brilliant scientists to positions of heroism. How does Roadside Picnic buck this trend while also embracing it? Provide several examples.

Detail the stalker life, including the original stalkers and the new style of stalker. What is it about the stalker lifestyle that so appeals to Redrick, and how does the lifestyle affect his life decisions?