There are two cats on that chair and neither of them chose the arrangement. They negotiated it — over weeks, with some disagreement — and arrived at a working settlement: one at each end, nobody moves suddenly, and the warm spot rotates on a schedule neither of them would be able to explain.

Households run on settlements like that. Most of them are never discussed and work anyway.

Money is the exception. An undiscussed financial arrangement doesn't quietly settle — it accumulates, and the discussion happens later, at the worst possible moment, about a number nobody agreed on.

This is the article about bitcoin in a shared household, and it is the one I'd most want a reader to actually act on.

1. The Secret Stack Problem

A pattern I've seen described more times than I can count: one person in the household is into bitcoin, the other isn't, and rather than have the conversation, the first one just... doesn't mention the size of it.

It starts innocently. The amount was trivial. Then it wasn't, and now mentioning it requires explaining why it wasn't mentioned earlier, and the longer it runs the harder that conversation becomes.

Three ways this ends, all bad:

• It falls. Now you're explaining a loss and a concealment, and the second one is what the argument will actually be about.
• It rises a lot. Which sounds fine, until the person who didn't know finds out that a significant share of the household's wealth was managed without them. Being right does not fix that.
• You die. Nobody knows it exists. It's gone, and the people who needed it most never learn there was anything to look for.

There is no version of this where the secrecy was worth it. If you take one thing from this article, take that.

2. What the Other Person Actually Needs to Know

Not the technology. Almost never the technology. Four things:

• That it exists, and roughly how much. A share of savings, in plain language. "About a tenth of what we've put aside" is enough.
• Why you hold it, in one sentence they'd be able to repeat.
• That it can fall a long way, said by you, in advance, in a calm month. This is the single most valuable sentence in the whole conversation, because it means a drawdown isn't also a surprise.
• How to reach it if you're not here. Where the backups are, what device, who to call. The letter from the inheritance article, in a drawer they know about.

That's the briefing. It takes ten minutes and it converts a private hobby into a household asset.

3. Shared or Separate

Both work. Deciding deliberately is what matters.

Separate — it's your money from your side of the finances, treated like any other personal allocation. Clean, simple, and it still requires the four disclosures above, because the inheritance problem doesn't care whose money it was.

Shared — it's a household position, with a size agreed by both people. Slower to decide and far more robust, because the person who didn't choose it can't be blindsided by it.

The failure mode is the undeclared middle: funded from joint money, decided by one person, discussed by nobody. That one produces the argument.

4. The Access Question

Here's where households get it wrong in both directions.

Too open: the seed phrase lives somewhere both people can reach, written on paper in a drawer. Now a single burglary, a single scam against the less technical person, or a single bad week takes everything.

Too closed: one person holds everything and the other has no path to it at all. That's the inheritance disaster, and it's the more common one.

The middle is access without control:

• They know where the backup is and can physically get to it if needed, but it isn't used day to day.
• Or, better for larger amounts: a 2-of-3 multisig where they hold one key — they cannot spend alone, you cannot be the single point of failure, and if you're gone they can act with the third keyholder.
• Or, simplest: the letter with your will, naming the specific person who should help them.

Pick one. Any of them beats the default, which is nothing.

5. The Conversation Itself

Practical notes, because this is the part people avoid:

• Do it when nothing is happening. Not after a big move in either direction. A calm month means the discussion is about arrangements, not about a number.
• Lead with the risk, not the thesis. "I want to tell you about something I hold and what happens to it if I'm not here" opens a very different conversation from "let me explain sound money".
• Don't ask them to agree with you. Ask them to know. Those are different requests and only one of them is reasonable.
• If they're uncomfortable with the size, that's data. A position your household can't sleep on is too large, regardless of your own conviction. This is the sizing test applied to two people instead of one.
• Write down what you agreed. One page, dated, with the backup locations. Revisit it once a year, ideally alongside the recovery drill.

The Point

The two cats on the chair worked out their settlement without a conversation because the stakes were a warm cushion and the renegotiation costs nothing. Money isn't like that. Undiscussed arrangements about money don't settle — they compound, quietly, until something forces the subject at the worst possible time.

Ten minutes, in a calm month, about four facts. It's the cheapest thing in this entire series and the one most likely to still matter in twenty years.

Tell the person you live with. All of it, before you have to. 🐾⚡