This is a possible summary:
The video is a guide on how to figure out what year you are in if you accidentally time travel. It covers various clues from the natural environment, the human presence, the language, the writing, and the technology that can help you narrow down the time period. It also promotes a skillshare class on filmmaking using an iPhone.
Here are some possible key facts extracted from the text:
1. The text is a transcript of a video that explains how to figure out what year you are in if you time travel.
2. The text covers various scenarios from before the Big Bang to the modern era, and gives clues based on astronomy, geology, biology, and history.
3. The text uses the Lord's Prayer in different forms of English as an example of how language changes over time.
4. The text mentions some inventions and innovations that can help narrow down the time period, such as farming, writing, paper, gunpowder, and printing press.
5. The text ends with a promotion for Skillshare, an online learning platform that sponsors the video.