Neil deGrasse Tyson headlines one of Reddit's first video AMAs

Neil deGrasse Tyson

What happened

Reddit tapped Neil deGrasse Tyson to star in one of its first video-format AMAs, where he answered questions on science and art on camera; The Verge and Mashable both covered it as a successful showcase of the new format and of Tyson's natural rapport with the community.

The lesson

Repeat, consistent authentic engagement builds enough trust that a public figure becomes a platform's flagship example of a new format.