Warmth runs on a relevance clock, not a calendar.

The check-in you deleted three times

You open the app, scroll to a name you last spoke to in March, and start typing. "Hey! Just wanted to check in and see how things are going." You read it back. You delete it. You try again, softer this time, and delete that too.

The problem isn't the wording. It's that you're reaching out because a number in your head crossed a threshold, not because you have anything to say. And the person on the other end will feel exactly that.

Warmth runs on a relevance clock, not a calendar

The honest answer nobody writes cleanly: there's no magic number. Not 90 days, not quarterly, not "twice a year for tier-two contacts." Those cadences get repeated because they're easy to put in a spreadsheet, not because warmth obeys them.

Warmth doesn't decay on a schedule. It fades when you stop being relevant to each other. Call it the relevance clock. It resets every time you give someone a reason to think about you that's actually about them, and it keeps running no matter how many calendar reminders you set. A contact you pinged last week can be colder than one you haven't emailed in a year, if last week's ping was hollow and the year-old thread ended on something real.

A contact you pinged last week can be colder than one you haven't emailed in a year.

Why "touch base every 90 days" quietly backfires

Quarterly check-ins feel responsible. You block the time, you work the list, you send the notes. But walk it from the other side. Someone you met once at a conference emails "just staying on your radar" with nothing attached. What does that actually communicate?

It tells them you want something, you have no specific reason, and you're running them through a process. That's not neutral. It costs you a little each time, because you've trained them to read your name as an obligation rather than a signal. Do it four times a year to two hundred people and you've built a machine that manufactures mild annoyance at scale. The empty touch is worse than silence, and everyone who's been on the receiving end knows it.

What the research actually says about decay

Three findings cut against the calendar. Mark Granovetter's 1973 paper "The Strength of Weak Ties" argued that the contacts most likely to hand you something new, a job, a lead, an introduction, are exactly the ones you're not in constant contact with. Frequency isn't what makes them valuable.

Levin, Walter, and Murnighan pushed further in their 2011 study "Dormant Ties: The Value of Reconnecting." When people reconnected with contacts they hadn't spoken to in years, the advice those dormant ties offered was often rated more novel and more useful than what their active network gave them. A relationship can go quiet for a long time and still deliver.

Robin Dunbar's work on relationship layers is the counterweight: the inner circle of roughly five to fifteen people does need regular investment to hold its place. But that's five to fifteen people. It was never the two hundred cards in your event bag.

The trigger, walked through

Say you met a hardware founder at a demo day. Mid-conversation she mentioned her contract manufacturer kept slipping timelines and it was wrecking her launch. You captured that detail and moved on.

Four months pass. No check-ins. Then you read a piece about a sourcing platform built for exactly her problem, or you meet someone who runs ops at a firm she'd want to know. That's the trigger. You send two sentences: here's the thing, it made me think of the supplier mess you described in April, worth a look.

Compare that to the timer version, where at the 90-day mark you'd have sent "hope things are going well!" because the calendar told you to. One lands as useful. The other lands as noise. The difference wasn't timing. It was that you had a reason, and you'd kept the context that let you use it.

What changes when you drop the timer

Once you drop "days since last contact" as the metric, the question changes from when to whether. Whether you have a reason that's about them. And the amount of reason you need scales with distance.

For the handful of people in active work with you, the bar is low: react to their news, answer fast, share the small thing. For the wide outer band you met once, the bar is high: wait for a real event, then show up with substance. Most people invert this. They over-touch the outer ring with empty notes and under-invest in the inner one.

Why context beats reminders

The cadence guides skip one catch: trigger-based outreach only works if you remember the trigger's target. You can't send the two-sentence note about her supplier problem if, four months later, all you have is a name and a company.

Most business-card scanners save the card. The card was never the point. The line that mattered was the one about the contract manufacturer, the thing you'd only know to write down if capture was fast enough to happen in the room. Met's Event Mode keeps the context attached to the person, so when the reason finally shows up months later, you already have the hook. It doesn't nudge you every 90 days. It makes the note you send when there's a real reason worth sending.

What we're tracking next

We're watching one question: whether capturing conversation context, not just contact details, shifts people toward fewer but higher-response follow-ups over a year. It's the metric that would prove the relevance clock beats the calendar in practice. When there's enough signal to say either way, we'll write it up.