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The key question for any time travel sci-fi universe: can you go back in time and stop yourself from going back in time? If you can, you can build a super army
by ivankirigin 17y ago
The key question for any time travel sci-fi universe: can you go back in time and stop yourself from going back in time?
If you can, you can build a super army and have infinite resources. If you can't, you're probably going to cease to exist or other bad things will happen.