One benefit is that they are engaging. Stories capture our attention more easily than just facts. For example, in a Ted Talk about a scientific discovery, if the speaker tells the story of how they came to the discovery, it makes it more interesting. Another benefit is that they are easier to remember. We remember stories better than just data. So, the message in the Ted Talk stays with us longer.
Scientists may also be speakers. They use the platform of science fiction in Ted Talks to explain scientific concepts in a more accessible and engaging way. For example, a physicist might talk about the science behind time travel as it is often depicted in science fiction stories, bridging the gap between theory and fictional imagination.
In Ted Talks about building a fictional world, they usually suggest doing lots of research. You should look at existing fictional worlds for inspiration and think about what makes them compelling. Also, it's important to have a unique hook that sets your world apart.
In TED playlist 6 talks on how to tell a story, you'll find speakers sharing insights such as the importance of emotional connection, using vivid language, and having a clear message.
For a story to be good in TED Talks, it typically needs to be authentic, relatable, and have a unique perspective. It should also be told in an engaging and passionate way that captures the listeners' attention and leaves a lasting impression.
I'm not sure specifically which speakers are in that particular 'ted talks about science fiction' without more information. There could be a variety of experts in the fields of science, literature, or technology.
You can also look for multiple perspectives on the topic. If different reliable sources agree, it's probably fact. Also, be cautious of overly emotional or one-sided presentations, as they might skew towards fiction.