Having said that, this film is adapted from Philip Dick's short story "Impostor" of the same name. The film basically follows the background setting and changes the plot. It is recommended to read the original book.
1. What are the conditions for a bomb to detonate?
I don't know, it's like that for humans. The security department only knows that the bomb will detonate under certain conditions, and this has nothing to do with the will of the replica. At the end of the novel, it is clearly mentioned that the male protagonist's detonation condition is to say the sentence "If that is Spencer, then I...". It wasn't featured in the movie, but many people should have guessed it. Spencer used this to scare the security services that the bomb was going to go off immediately, creating an opportunity for escape.
2. Is there any way to identify the replicator?
no. The technological level of aliens is so much ahead of the earth. Replicants can perfectly replicate the original body at the DNA level, together with memory, they can be understood as clones. In order to ensure that no flaws are exposed, the replicator will naturally not know his true identity. In the film, Spencer's failure to complete the test in the hospital is a foreshadowing left by the director, but it is very likely that the difference cannot be detected in reality.
3. Can the bomb itself be detected?
In the film, the bomb is embodied in the heart, and the novel does not mention what the structure of the bomb is. Considering the current level of technology in the film, it is likely to be a biological bomb. X-rays and other methods cannot be scanned. If you want to find out whether there is a bomb inside the heart, you must destroy the heart no matter what.
4. Did humans win in terms of results?
Not in the novel. The bomb on the male protagonist finally destroyed the entire planet. It can be said that human beings have been played by aliens from beginning to end, which is a tragic ending.
The movie makes this part more optimistic. The settings of the two clones of Spencer and Maya, logically, Spencer's role should be just a smoke bomb, attracting the attention of the security department, so that Maya can complete the task of assassinating the commander. However, due to Spencer's efforts to fight, the Grand Commander has not shown up for safety reasons, and the security department began to re-examine the whole incident and found Maya behind it. Although dozens of people were wiped out, the mission failed for the replicators.
5. What is the theme of the film?
This is a matter of opinion. Personally, I think that the first is to explore the problem of self-cognition, how to prove that I am me? Another point is inherited from "Do androids dream of electric sheep? "The core theme: Is there any difference between robots and humans? In the film, the security executive tells Spencer that you can copy everything from him, but you can't take away the soul. So are replicants really soulless? At least from the perspective of our experience as the protagonist, we have our own feelings and beliefs, and it is completely impossible to distinguish the true from the false. So does it really make sense? Can replicants be completely equal to humans without bombs?
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