re: What is the biggest movie plot hole you have ever seen?

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If a race is capable of reaching out planet, their technology must be obscenely far ahead of ours. They would absolutely pulverize us if there were any conflict. If they're capable of intergalactic travel, just imagine their weapons. We cant even put a man on mars

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Maybe there is no conflict on their planet, thus giving the race the unity to pursue space travel where as the human race has dedicated itself to the death and extinction of others, so our weapons are superior, but their travel technology is superior.