If I run a nucleotide by nucleotide most-like evaluation & then optimize a spanning tree from those relative 'alike' measures – the best solution which fits all the alike-strengths places Omicron before the B.1 sequence (Dec 24 2019).

Originally tweeted by Ethical Skeptic ☀ (@EthicalSkeptic) on December 6, 2021.
Originally tweeted by Ethical Skeptic ☀ (@EthicalSkeptic) on December 7, 2021.