How to Find a Good Publicist

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"Dark matter can't do collisionless that. It's just slides through the same region of space," he says. "Real, real dark matter doesn't vote to stick together or at least stay in the same region." But there is a more subtle effect, which is a whole bunch of particles coming together and losing energy collectively by spitting out some high-energy photons.

Welcome to the April 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number — based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good — and sometimes group them together if they are about a similar topic. Enjoy!

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