A possible concise summary is:
This is a transcript of a video by Luccas Neto, a Brazilian YouTuber who makes content for children. He promotes his new Christmas movie and plays two mobile games called "The Floor is Lava" with his friends. He explains the rules of the games and shows different levels and challenges. He also encourages his viewers to like and share the video and to watch his movie on Net Now. He ends the video with a song and his catchphrase "What's up".
Here are the key facts extracted from the text:
1. A nuclear fusion reactor in South Korea achieved 100 million°C for 30 seconds.
2. The reactor's temperature was 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.
6. A net energy gain was achieved in the nuclear fusion experiment.
7. The experiment's success is a significant step towards practical nuclear fusion energy.
Please note that these facts are based on the information provided and should be verified for accuracy and context.