A possible concise summary is:
The text is a transcript of a video where the speaker tries to learn 11 skills that seem impossible, such as throwing a pen like a dart, breaking a glass with his voice, and jumping into a car window. He documents his failures and successes, and shares his tips and motivation. He manages to achieve all the skills except one, which he postpones for the future. He expresses his happiness and satisfaction at the end.
Here are some key facts extracted from the text:
1. The text is about the author's attempt to learn 11 skills that seem impossible or very hard.
2. The skills include throwing a pen like a dart, opening an umbrella with a kick, splitting an apple with hands, opening a bottle with paper, doing a one-inch punch, breaking a glass with voice, and others.
3. The author uses tutorials, trial and error, and persistence to learn the skills.
4. The author succeeds in most of the skills, except for the one where he has to jump into a car window and the one where he has to escape from zip ties.
5. The author breaks the glass with his voice after four days of trying with different glasses.