CLEAN : Olympics: US snowboarders seek extra excit

The video discusses the risks and insurance issues in boardercross, highlighting the excitement and unpredictability of the sport. It introduces young team members who bring fresh energy and learn from veterans. The course is described as spectacular and fast, with many features, adding to the sport's thrill. The speaker enjoys the adrenaline rush and overcoming challenges.

What does the speaker mean by saying the course is unpredictable?

Why does the speaker enjoy the sport despite its dangers?