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wouldn’t the defenders be able to trace something about where those people are?

Not necessarily or trivially.

You got this, man.

You spent 18 years learning to navigate a gated world. You will do just as much learning in the next 18 navigating a newly ungated one.

Think about the sort of kindness you would want to treat a younger version of yourself as he fumbled through that learning. Practice treating your new “young” self with that kindness today. It will pay dividends.