Final answer:
Spender desires adventure and freedom in exploration, while the captain prioritizes survival and practicality.
Step-by-step explanation:
The differences between Spender and the captain's ideas about exploration can be seen in their conflicting desires and attitudes. Spender expresses a longing to travel and explore, desiring the adventure and freedom that comes with it. On the other hand, the captain is more practical and cautious, acknowledging the need to prioritize survival and the limitations of resources. These differences reflect their contrasting perspectives on exploration - one driven by curiosity and wanderlust, and the other grounded in practicality and survival.