Why is Mount Paektu even there?

This man does not claim to be a scientist. He has reviewed information on the volcano and then made this video. Links to his sources are below the video on You Tube.

https://www.youtube.com/watch?v=3C2HVOB-g5s

Quote:

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Mount Paektu (also known as Changbai Mountain) is one of the largest volcanoes on earth and yet, for the longest time, nobody could explain where it came from or why it exists. Here we will discuss why this volcano is so unusual and how the geological mystery surrounding it could eventually be solved.

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