The conversation between human and AI assistant.
What is the most important video to be watched on YouTube?
Can you recommend any specific videos related to those topics?
For the #MeToo movement, the "Me Too" video by Tarana Burke is a powerful and important video. For Black Lives Matter, the video of George Floyd's murder has been a catalyst for change. For scientific advancement, the video of the first human landing on Mars is significant. And for environmental issues, the video of Greta Thunberg's speech at the 2018 United Nations Climate Change Conference is a must-watch.