[math-fun] Draft of January 2019 blog post

I'm cutting things awfully close this month, but if any of you happen to have time to read my new essay on Wednesday morning or afternoon and send me suggestions for how to improve the essay before the evening, I'll do my best to incorporate (and, as always, acknowledge) them when I post it in the evening. http://mathenchant.org/044-draft.pdf Suggestions after Wednesday night are welcome too, since I can edit the essay even after I publish it. And Comments (in the Comments section of the blog) will be welcome at that time as well. Thanks, Jim Propp