1. The female scientist really came back through time, not her when she was young. This is obvious, and the appearance is the same as the future. James also once said that in the future, scientists will be sent back after the source of the virus is determined. So it can basically be ruled out that she was a person at that time.
2. Based on the premise of 1, of course, the female scientist is not insurance, but she said that she is insurance, which is actually a pun. We should focus on what insurance is and what it is for. Insurance is the remedy after an accident or accident. When the female scientist came back to retrieve the virus source sample to save the future world, in fact, it was insurance for the destruction of the world.
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