That subreddit looks like an excellent source, thanks! While I am not panicking yet, I have to say this feels somewhat like how I felt about Covid-19 in December/January. "Hmmm...."

Of course, I also felt that way about SARS and bird flu and MERS and Ebola and Zika, so maybe that still means no need to get too concerned yet. But the statement that, essentially, any mutation which can occur in Covid-19, will occur many times (because the population is now so large), and the fact that this strain appears to have spread between mink farms miles apart in ways not yet explained, do give one food for thought.