```youtube-highlights { "videoId": "ldxFjLJ3rVY", "title": "This picture broke my brain", "publish": {"highlights":[{"id":"h1774258993342","text":"By the way, you might be wondering where I got this straightened out version, and the answer is that those two mathematicians I referenced generously let us use it. This is something they actually reverse engineered from the original Escher piece using the help of two Dutch artists, Hans Richter and Jacqueline Hofstra. The way they reverse engineered it is actually super interesting. In a certain manner of speaking, it involves taking the logarithm of the original piece. I recognize that sentence probably sounds like nonsense right now, but later on in this video, I promise that will make abundant sense.","startEntryIndex":70,"startCharOffset":1,"endEntryIndex":77,"endCharOffset":69,"startTime":261.18,"endTime":291.3},{"id":"h1774259537682","text":" This idea where you have a straight reference image and then a warped grid, and you use the two together to create a warped scene, is a common process in graphic design. It's known as a mesh warp, and Escher didn't invent it for this case, it's something that he had used multiple times before for other pieces.","startEntryIndex":164,"startCharOffset":0,"endEntryIndex":168,"endCharOffset":72,"startTime":620.06,"endTime":635.64}],"annotations":[]} } ```