What does the ending of the movie "Source Code" mean?

In reality, only half of the protagonist's original body is left, and he relies on life-support equipment to maintain things like brain waves. The lame scientist used the remaining brain waves to conduct experiments. There was another person on the train. Maybe their brain wave frequencies and many other characteristics were similar, so they borrowed his body to disarm the bomb.

Due to the parallel theory, the people on the train are still alive in another parallel space. When half of the protagonist's body is still alive, the protagonist's mind is already in the person on the train. If the supply that maintains half of the body is cut off and half of the body dies, the protagonist's soul or mind will be stored in the person on the train. With that Live on as a human being. Extended information

The film "Source Code" is directed by Duncan Jones and co-stars Jake Gyllenhaal, Vera Farmiga, Michelle Monaghan and others. The film was released in the United States on April 1, 2011.

The film tells the story of Colt Stevens, a U.S. Air Force pilot who was on a mission in Afghanistan and woke up to find himself on a train heading to Chicago. A series of thrilling events.

"Boom, boom" and "hoo, boom", the rapid heartbeat and gasping were deafening. Everything began to blur, then distort. Then, a sharp train whistle brought Captain Colt Stevens (played by Jake Gyllenhaal) back to reality. Outside the window, there is a green space speeding backwards. The woman sitting opposite him (played by Michelle Monaghan) looked at him confusedly and continued the topic. Colt suddenly felt his scalp numb.

Colt realizes there is only one way to prove the truth. He rushed to the bathroom and stared blankly at the mirror inside. The person who appeared in the mirror was a middle-aged man wearing a woolen coat and a blue shirt, with a somewhat frightened look in his eyes. Not himself, at least not in his impression of himself. Before he could get over his shock, a powerful blast of air struck, and the entire train was blown to pieces in the fire. Opening his eyes suddenly, Colt looked around in surprise. He found that he was in an independent space, wearing a military uniform that belonged to him.

Reference source code (American 2011 science fiction film starring Jake Gyllenhaal) Baidu Encyclopedia