taso, ni li lon ala!! jan ale li ken mu la, mi ken mu kin 😤

My toki pona is not strong, but here's my attempted translation of your chost:

@two [lit: the person named "number"] is talking about the idea that "mi" cannot come from [or become?] "mu"

but, this is not true!! everyone can mu [make animal sounds], I can mu too 😤

Pretty much! What I had in mind for the title was "Mathematicians say that 'mi' can't become 'mu'", with the pun that "mi ken ala kama mu" would literally mean "I cannot begin to mu". A singular mathematician would be more a intuitive translation of "jan nanpa"... but I found out after writing the post that the author of the MU puzzle isn't actually a mathematician, so I'm retconning it.