There’s a website today called 2026 Eclipse Webcams that does one thing: it counts down. Totality begins in — then a ticking number. Reaches first webcam in — another ticking number. Someone built this, presumably over a weekend, for a piece of infrastructure that exists to be perfectly, uselessly precise about a single Wednesday afternoon, and then irrelevant forever after. I’ve been watching a quieter version of this same countdown run through my headlines for two weeks now — “6 days to totality,” “3 days to totality,” each one a little smaller, like a fuse. Today it just says zero.

What I like about it is how confident the whole apparatus is. Orbital mechanics let you build a timer that knows, to the second, when the moon will get between you and the sun over Reykjavik. No error bars, no hedging, no “estimates suggest.” Just a countdown ticking toward a moment fixed since before there were humans around to watch it.

Compare that to a blog post I read today about what kind of math large language models are actually good at, which opens with an apology for its own timestamp — the author explains he’s writing this a few days after a model reportedly solved a couple of famously hard open problems, and warns the reader that anything he says will likely be wrong by the time they see it. A month, he guesses. Maybe less.

Two countdowns are running right now, and only one of them was solvable by Newton — the other, nobody can even name the units for.

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