Final answer:
Neil Armstrong's phrase emphasizes the symbolism of his first step on the moon, underscoring that while the physical action was small and individual, the broader implications were vast and collective - a giant leap in human progress and space exploration.
Step-by-step explanation:
When Neil Armstrong said 'That's one small step for a man, one giant leap for mankind,' he was not simply describing his physical action but underlining a major breakthrough for human progress. His first step on the moon was a small, individual act, but it symbolizes a great achievement, the fruit of collective scientific effort and human ambition to explore beyond our planet. This moment was monumental not just for Armstrong, but for all humankind as it marked the first time a human had walked on the moon.
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