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Cake day: June 17th, 2023

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  • It’s not “people vs persons” but “those people vs they”.

    Conversationally, “those/these” distances you from the group you are talking about, which is humorously weird when it’s your family you’re talking about.

    It’s not the meaning of the words, but habitual (and often fleeting) attribution around them that tripped you up.

    PS: “People” are uncountable, “persons” are countable. That’s basically the whole difference between the two plurals. Although it’s rapidly disappearing, as “ten people” won’t raise a single eyebrow in a conversation.














  • Teeth cannot produce enamel. Enamel is not a living tissue and it was produced by cells outside of the tooth in a coral-like manner. In order to grow a new tooth, you need it to be fully surrounded by specialized living tissue for the whole growth cycle.

    PS: I honestly expected something like this to come out of bioelectric computation research, but progress seems slower there. Or rather knowledge and techniques in other fields is reaching critical mass, giving us these advances.