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I am not a mod, but tI'll answer anyway. This video is as if it was tailor-made to answer your question:
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[The Aftermath of the Black Mesa Incident":](https://www.youtube.com/watch?v=5qmWvsxHuEk
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Answer: no, no it cannot. We'd be fucked. Completely fucked.
(Everyone should watch Neinfeld's Half-Life videos. They will change how you see the Half-Life univese. HL is practically a horror game, a living nightmare for everyone on Earth. And the horror will never end.)