The summary is:
The text is a transcript of a video about dopamine, the neurotransmitter that is associated with pleasure and motivation. The speaker explains how dopamine works, how it can be affected by different sources of stimulation, and how some people try to do dopamine fasting to reset their sensitivity to dopamine. The speaker also promotes some products and services related to learning English, reading books, and watching podcasts. The speaker concludes by encouraging the viewers to live with a buzz and be happy, and to subscribe to his channels and comment on his video.
Here are the key facts extracted from the text:
1. A Korean nuclear fusion reactor achieved 100 million°C for 30 seconds.
2. The experiment demonstrated that nuclear fusion is moving from a physics problem to an engineering one.
3. The temperature achieved is nearly seven times hotter than the core of the Sun.
4. The core of the Sun has a temperature of close to 15.7 million Kelvin.
5. The surface temperature of the Sun is approximately 5800 K.
Please note that these facts are based on the search results provided and are current as of the dates mentioned in the sources.