This is a possible concise summary:
The video is about the top 20 satisfying deaths of hated TV characters, ranging from villains like Ramsay Bolton and Joffrey Baratheon from Game of Thrones, to annoying characters like Principal Snyder from Buffy the Vampire Slayer and Rosalind Shays from LA Law. The video provides clips and commentary for each death, explaining why they were satisfying for the viewers. The video also warns about spoilers for the shows featured.
Here are the key facts extracted from the text:
1. A Korean nuclear fusion reactor achieved 100 million°C for 30 seconds.
2. The reactor's temperature was 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 a physics problem to an engineering one.
5. The Korea Superconducting Tokamak Advanced Research (KSTAR) experiment was involved in this achievement.
6. Scientists have managed to sustain a nuclear fusion reaction at these extreme temperatures for the first time.
7. A net energy gain was achieved during the nuclear fusion experiment.
Please note that these facts are based on the snippets provided and should be verified for accuracy with full context.