Yeah, that´s true. I don´t know how much open Larry is in his other videos, I saw just this one where he only mentioned something about his cycle...
Glad to know you actually checked out some videos by the Horse! Because of his poor English, he only creates content in the Czech language so you might be one of a very few foreign visitors to his channel haha :) Oh yeah, that video with him and Adam Ondra (the climber) is amazing. In fact, Adam Ondra is even much more popular than the Horse in our country as he is widely regarded one of the best climbers in the world.