Teach me something useful about a subject you know very well.

Doesn't have to be a detailed lesson, in fact ideally just a few words or a single post.

Boosts appreciated, 2023 is coming and I'd like to get smarter. Maybe we can all get a bit smarter.

I'll start:

My job is voiceovers and I can tell you with absolute confidence that reading your writing out loud is like a magic trick for better proofreading.

The mouth stumbles on mistakes the eyes glide over.

@ConorMahood @doalty Always assume data presented to you has an error of some point. Verify everything.
@DataChick @ConorMahood @doalty Extrapolated compliments of an ex-manager: the most dangerous data is when you take a measurement and get what you expected, so you don't bother to check your signal integrity/dataflow path. Make sure that you're measuring what you think you are, by forcing faults, so you know you're not just getting lucky but not actually correct results.
@smellsofbikes @ConorMahood @doalty @DataChick This sounds a bit like a software maxim I have heard (and trust in): always be suspicious if code seems to run perfectly the first time.

@ConorMahood @doalty @smellsofbikes @Gwyntaglaw @DataChick After 20 years, I can remember only a few times code ran perfectly the first time.

In each case, it was because I’d spent a great deal of time examining the problem first.