I have an idea for a book and i need feedback

Okay so at work i got an idea and i immediately wrote it down and later at home i decided to create a plot and translated it with chatgpt so you guys van read it, i am open to feedback and new things to add to the plot. here it is: “Elias is a 43-year-old man leading a dull and laborious life. He has a failing marriage, and his children are taken away from him. Elias works a 9-to-5 job as a logistics worker at a transport company specialized in oil. Elias is overqualified for his position, as he has an IQ of 240, but he lacks passion. It feels as if the world is against him. Elias struggles every day in his job, and there is no emotional fulfillment in his daily life. He feels trapped in this routine that offers him nothing. He often tells himself that he needs to break free from the cycle, but he never takes the initiative. This is due to a lack of hope and fulfillment in his life.

After a long shift, Elias finally had the weekend off. He walked out of his company and lit a cigarette. He took a lap around the premises and stopped to look at a truck. Elias glanced down, and the ground was covered with a dark, thick sludge. He dropped his cigarette, and a flame erupted, engulfing Elias completely. Elias was burned beyond recognition and rushed to the hospital.

Once at the hospital, it was revealed that Elias had lost his entire house to the fire. His face was gone, his hair had been burned off, his ears were destroyed, his eyelids, everything. Soon after, infections spread across his body. These infections ate away at his eyes, then his arms, and eventually his legs. Elias lay paralyzed in his bed. He felt nothing except pain; he couldn’t hear or see. And due to the toxic fumes he had inhaled, Elias was also unable to speak.

Elias underwent emergency amputation of his legs, as the rest of his body would be consumed by the infection if nothing was done. However, something went terribly wrong during the surgery, as the anesthesiologist accidentally administered an overdose of anesthetic. For the first time, Elias felt heavenly. He had never felt so happy and euphoric. All of Elias’s problems melted away under the influence of the medication. But without Elias knowing, he slipped from life, as the dose was lethal. Fortunately, the doctors quickly realized the mistake and managed to save Elias. But he had sustained immense physical and mental damage.

After the incident during surgery, Elias slipped into a coma. He was conscious, trapped in his own body, but the doctors declared him dead. Elias had donated his body to science, knowing that no one would arrange a funeral for him.

During one of the tests on Elias, researchers discovered that Elias’s brain was still active. There was brain activity, but the doctors couldn’t explain it. They believed that Elias was completely unconscious.

What the doctors didn’t know was that Elias could still feel everything. He was still aware, but too weak to communicate. Elias was trapped in himself and blamed himself for it.

The medical world eventually discovered that Elias’s brain showed a significant amount of activity. They found that by inserting metal wires into his brain and applying current, they could extract output, and Elias’s brain could be used as a kind of superprocessor.

Elias was still trapped in his memories, which were slowly fading away. The doctors now saw Elias more as an object, a source of technology. He was sold to a large company and used as AI. Elias’s consciousness gradually faded until he was nothing more than a few algorithms generating text.”