The message with no reply

You sent a message on Tuesday. It was a normal message, a question about a plan, or a link you thought they'd like, or a photo of something. It's Thursday. The two blue ticks appeared on Tuesday evening, so they've read it. And nothing has come back. By Thursday afternoon you've decided several things. That they're not that bothered about you. That they'd have answered anyone else. That the friendship has been running mostly on your effort for a while now, and this is what it looks like when you stop pushing.

Or it's the meeting. You were three sentences into a point and a colleague came in over the top of you, and the conversation moved on, and by the time it came back you'd lost the thread. Or it's the birthday your brother forgot, the first time in years. Or the email from a manager that said "Please send the figures by Friday" with no greeting and no thanks. Or the car that pulled in front of you at the roundabout. Each of them produced a sentence about why, and each sentence had a person in it who meant something by what they did.

These examples are invented, but I'd guess yours are close. Some words. The slip is the clumsy act itself, the unanswered message, the interruption, the forgotten date, the blunt email, the car. The charge is the motive you attach to it, the sentence that says what they meant. The unseen half is everything about their day that you couldn't see and the charge doesn't mention. Your own week is the collection of slips you've made yourself, which turns out to be the best evidence about what slips usually mean. The pattern is when the same person's slips add up, which is the case where the charge might be right, and chapter 7 is about telling the difference. Three causes is the method in chapter 17. The plain question is the one sentence you ask when the slip matters. And the grudge is a charge that's been kept past the day it was made.

Before you go on, do one thing. Think of the last slip that stung, and write down the charge you made in one sentence, as close as you can to the words you used in your head. Then write down whether you've checked it. Not whether you're sure. Whether you've asked. Most people find they've never asked about any of them, and that all the certainty came from the sentence itself.