Quilters who started quilting ten/ fifteen years ago have no idea. Bringing back the known and presenting it as new seems to be the trend these days. I see so many post on Facebook about a new quilting discovery, and I think hey I did this decades ago. Now the big NEW thing is cutting a mat to fit a lazy susan and making a rotating mat. Posters are going nuts saying why didn't I think of that or What is a lazy susan? This was a thing everyone was doing before the rotating mat was manufactured.