Final answer:
In the story 'A Sound of Thunder,' the present day is different from before due to the discovery of a butterfly on Eckels' boot from the prehistoric past. The story highlights the human impact of time travel and the unforeseen consequences of our actions, even seemingly trivial ones.
Step-by-step explanation:
In the story 'A Sound of Thunder,' the present day is different from before in several ways. One major difference is the discovery of a small butterfly on Eckels' boot when he returns from his time travel expedition. This butterfly is from the prehistoric past and its presence in the present indicates that Eckels has changed something in the past, causing a ripple effect which altered the course of history.
This story tells us about the human impact of time travel by showing how even seemingly trivial actions can have unforeseen and significant consequences. Eckels stepping on a butterfly in the past changed the present in a profound way. It warns us to be cautious about the effects of our actions, as even small decisions can have far-reaching implications.
The story also emphasizes the unforeseen consequences of our actions. It demonstrates that even minor actions can lead to major changes. Eckels' decision to ignore the rules and step off the path had a catastrophic effect on the future, proving that our actions, no matter how small, can have unexpected and widespread repercussions.