Examines the fluidity and persistence of selfhood, especially when memory, appearance, and purpose can be altered or extended over time.

The moral implications and responsibilities associated with scientific research and its applications, particularly in the context of alien encounters.

The adaptation and transformation of species over time, particularly focusing on how humans evolve in response to new environments and challenges.

The manipulation and engineering of living organisms to serve human needs, especially in genetic engineering and synthetic biology.

The pursuit of equity and fairness in society, addressing systemic inequalities related to class, race, gender, and access to resources.

The deliberate modification of an organism's genes, explored through the protagonist's creation of intelligent microscopic biological entities.

The stark divisions between different social classes and groups on Mars, exacerbated by corporate dominance and uneven access to technology and resources.

Raises questions about the morality of human enhancement, including issues of consent, fairness, and the consequences of playing god.

The story touches on selective breeding and genetic manipulation as a means to improve or control human populations within the narrative's society.