Whenever I think of the convenience of someone doing something for me I usually conclude it’s easily worth a tip. So I have taken to adding one. Then hopefully they’ll be happy to do it again in the future too.

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Caused by ash and rock interacting inside a cloud instead of ice particles. As you can imagine you can get this with volcanoes which can be pretty spectacular. Here’s more about how lightning forms inside a thunder cloud, the regular kind.

Dirty thunderstorm

The reason, generally, is simply that all those times previously, we weren’t tuned in to notice what’s top of mind now. The frequency likely hasn’t changed a bit, but our noticing of it has.

Also known as the Baader-Meinhof Phenomenon.

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The frequency illusion: we notice what’s top of mind