I suspect Fable refuses to talk about anything biology whatsoever (so much so that I can't use it) -- and Welch's test, i.e. an unequal variance t test, is beloved by biologists. Stupid, but there ya go...
I had Fable flag my question as unsafe with tag [bio] for asking it to ... use Unicode graphemes. In Elixir code that already was using this function elsewhere: https://elixir.hexdocs.pm/String.html
Fable refused to talk to me about how herring communicate with farts. It’s a little sensitive.