A possible concise summary is:
This is a transcript of a video that shows different scenes related to the disappearance of a boy named Max Pletnev, who went missing after attending a birthday party in a clearing. The video includes interviews with his classmates, who claim that he was drunk and aggressive, and then vanished without a trace. It also shows the investigation of the police and the psychologist, who suspect that the children are hiding something. The video also depicts the reactions of Max's parents, who are desperate and hopeful, and his former school love, who works at a pharmacy. The video ends with a scene where one of the classmates, Sonya Ryabova, is confronted by another girl, who accuses her of hating Max.
Here are the key facts extracted from the text:
1. A Korean nuclear fusion reactor achieved 100 million°C for 30 seconds.
2. This temperature is nearly seven times hotter than the core of the Sun.
3. The core of the Sun has a temperature of close to 15.7 million Kelvin.
4. The experiment demonstrated that nuclear fusion is moving from being a physics problem to an engineering one.
5. Scientists have managed to achieve a net energy gain from a nuclear fusion experiment.
Please note that these facts are based on the snippets provided and should be verified for accuracy with full articles or scientific reports.