Why do my good stretches always collapse?

A log can't answer why, but it can date the turn. The change point check looks for a day where your typical level moved and stayed moved, rather than dipped and recovered. Having the date lets you read what you logged around it instead of reconstructing it from memory.

Why can I not keep anything going?

That framing assumes a single failure, and a log often shows something less tidy: a level that shifted on a particular date, or a weekly rhythm that was there the whole time. Life Pattern Journal checks for both. What it reports is the shape and the date, not a verdict about you.

What is a change point?

A change point is a date where the typical level of something shifts and then stays at the new level. It is a different shape from a bad week, which dips and comes back. Life Pattern Journal looks for change points in your logged mood and energy and reports the date it found along with the history behind it.

How do I find out when things started going wrong?

Memory tends to date it to whatever was loud, which is often well after the actual turn. A daily log gives the statistics a real series to work on, and the change point check returns a date rather than an impression. You can then read the days around that date as you logged them at the time.

Why do I keep quitting things I care about?

No statistic answers that. What the log can offer is the timing: whether the drop was sudden or built over weeks, whether it lands on the same weekday, and what you had logged in the days before it. Life Pattern Journal reports each of those as a separate finding with its own count.

Can an app tell me when things changed?

It can name a date, which is a narrower and more useful claim than naming a reason. Change point detection looks for the point where the typical level of a logged series moves and stays moved. The finding carries the date range it drew on and how sure it is.

Was it one thing or was it building?

Those two leave different marks in a log. A single event tends to show as a sharp change point. A build tends to show as a run of days that line up with something logged earlier. Life Pattern Journal runs both checks, so the answer comes back as a shape rather than a story.

How do I find the date it turned?

Keep the ordinary days as well as the memorable ones, since the turn is what stands out against the ordinary ones. After a few weeks the change point check scans the series for a level shift and returns the date. It states the range of days it looked at, so you can see how much history the date rests on.

Why does everything fall apart at once?

Sometimes it does not, and the log is where that gets checked. Things that arrive together in memory often sit days apart in a record, and that gap is what the lagged checks are built to find. Life Pattern Journal reports the order and the distance rather than the pile-up.

When a good stretch ends · Life Pattern Journal

Good stretches ending is one of the few things a daily log is genuinely good at dating. This page covers the change point check, what separates a shift from a bad week, and why a date is a more useful thing to be handed than a reason.

The date is more useful than the reason

Something was working. Then it was not. The account that forms afterwards usually names a reason, and the reason is usually whatever was most memorable near the end.

A log offers something narrower and firmer: the date. Not why it turned, but when, and whether it turned at all or simply drifted.

What a change point is

A change point is a date where the typical level of something moves and then stays at the new level. That is a different shape from a bad week, which dips and comes back. Telling the two apart from memory is close to impossible, since both feel like a decline while you are inside them.

The check runs across your logged history and looks for the point where the series separates into a before and an after. What it returns is a date, and the range of days it examined to find it.

Memory dates it wrong

Ask when a good stretch ended and the answer usually lands on whatever was loud. An argument, a bad night, the day you noticed. Noticing is a late event. It happens once the new level has been running long enough to feel like the normal one, which is generally well after the level actually moved.

This isn't carelessness. Nothing about a shift announces itself at the time, and there is nothing to compare today against except an impression of how things used to be. A log replaces the impression with a series, and a series has a shape that can be scanned.

Sudden, or building

A single event tends to leave a sharp change point. A build tends to leave something else: a run of days that line up with something logged earlier, which the lagged checks find rather than the change point check.

Running both is what lets the answer come back as a shape rather than as a story. Stories are easy to construct after the fact and hard to check. A date and a gap can be checked.

This looks like a real pattern.
After days when you logged more sleep than usual, your logged energy tends to be lower about 2 days later.
Drawn from 48 pairs of days, between March and August 2026.

Something first, something after, a gap of about two days, and 48 pairs of days behind the claim. The count is what tells you how much to make of it.

The weekly rhythm nobody notices

One more shape belongs here. A weekday cycle is easy to live inside and hard to see, since every week resembles the last one and there is nothing to compare against except more weeks.

The weekday check compares your logged days by weekday across the whole history at once. If the log carries a rhythm, it says so, in the same confidence wording as everything else.

EmergingEarly signal. This might be a pattern, I need more to be sure.
ProbableThis looks like a real pattern.
StrongThis is a consistent pattern in your history.

Findings move as the log grows. One that stops holding up loses its level rather than sitting there at the level it earned earlier, and any finding can be hidden for a month or marked as wrong.

What it will not say

It will not say why the stretch ended. It has no access to anything outside what you logged, and a mood dial does not carry motive. Handing you a date, and the days around it as you wrote them at the time, is the end of its job.

It also cannot date a period you did not log. The ordinary days are what a turn stands out against, so a record of only the memorable days gives the check nothing to work with.

A date on its own explains nothing, and it is not meant to. What it gives you is a place to read. The days around a change point are already written, in your words, from before you knew they were going to matter, which is the only version of those days that has not been edited by what came after.

A few weeks of entries is the floor before any of this runs. Life Pattern Journal is not released yet. The waiting list on the front page sends one email now to confirm the address, then two more, ever: one when the beta opens and one when it launches.

When a good stretch ends