Watch the following 3 videos and response the main idea, each video's response should be at least 200 words.
Video1: https://www.youtube.com/watch?v=6d8-fXWoL7k
Video2: https://www.youtube.com/watch?v=_hLtG4cKKrk
Video3: https://www.youtube.com/watch?v=G8NQL1V_9Qw