huh, I didn't spot your comment before, and didn't think of searching for the word "polarized" in the comments. 2 days after you I independently posted a simil

huh, I didn't spot your comment before, and didn't think of searching for the word "polarized" in the comments. 2 days after you I independently posted a similar comment but with circularly polarized light: https://news.ycombinator.com/item?id=21852885 https://news.ycombinator.com/item?id=21852885