Annoyingly, it gets through the entire article pretty much without explaining what the hell JLCPCB is, assuming that you must know what they are. It appears to be a Chinese PCB (printed circuit board) manufacturer, where you can send them a schematic and they will make a PCB of whatever you desire. It appears that they are now limiting who they take orders from, and it seems likely that other Chinese PCB manufacturers will take the same step in the future.
Overall I enjoy reading Hackaday’s articles, But this was too much “inside baseball” since they didn’t bother explaining what JLCPCB was.
“cartilage does stop growing. However, cartilage is made of collagen and other fibers that begin to break down as we age.
The result is drooping. So what appears to be growth is just gravity doing its job. Our noses and our earlobes sag and become larger. Adding to the misconception is what happens to other parts of our face. While our nose might sag, our cheeks and lips actually lose volume, making everything else look comparatively larger.”