I linked to this earlier, but this is genuinely great: a new ways counting enormous quantities of data that will give you something statistically likely to be very close to the correct answer for potentially a vanishing fraction of the computation cost of the deterministically correct answer: https://www.quantamagazine.org/computer-scientists-invent-an-efficient-new-way-to-count-20240516/
@aral One of the consistently good, consistently inspiring things about this field is how often a significant advance or insight, something solves a real problem, also turns out to be something that a competent undergrad could implement for an assignment.
Maybe industrialized computation is just a byproduct of ignorance.