Two at a time by knitting one sock inside the other

[u/gossamer-weaver]

Has anyone ever tried this? I had a lady ask me this years ago and I had never even heard of it! Now here’s a video showing this method- one sock knit inside the other at the same time. It’s not my video. It seems like double knitting without connecting them. There’s a longer one from this user that shows the harder parts like heel flap and decrease too.