Vuelta atrás (Tapa flexible con solapas)

The idea of reversing time or memories is fascinating and raises questions about identity and mortality. I wonder what motivated the author to explore this particular science-fiction concept.

The depiction of extraterrestrial beings was intriguing but also made me question how humanity would react to real alien encounters. Was it just me feeling a bit anxious about our response?

The science felt credible without overwhelming the story, which kept me engaged. I'm curious about how Sawyer approached blending hard science with emotional depth.