Nine lives.
Zero leaks.

A cat wastes not a single movement. It sleeps two thirds of the day, hoards every gram of energy with ferocious stinginess, and releases the lot at once at precisely the moment it's worth it. That isn't laziness: it's reserve management of the highest order.

All money is, at bottom, exactly this — condensed human energy. The hours you spent at a desk, the aching back at the end of the day, the years that don't come back. When you save money, you're storing life in liquid form, waiting for the moment you'll need it.

And this is where the fiat system quietly betrays us. They don't take your savings all at once — that would be visible and nobody would stand for it. They do it slowly, year after year, printing more units and diluting yours. They call it inflation. I call it a hole in the bag. You hunt every day and the bag empties itself while you sleep.

Bitcoin was born to plug the hole. Twenty-one million units, and never one more. No central bank, no election, no national emergency can conjure the twenty-one-million-and-first coin into existence. It's absolute scarcity guaranteed by mathematics instead of promises — the first time in human history we've had such a thing. Your energy stays exactly where you left it.

A cat delegates its territory to nobody. It walks it, marks it, defends it and marks it again tomorrow, because it knows something we spent centuries forgetting: what you don't guard with your own claws isn't truly yours.

Leaving money in a bank is like leaving your cat at a boarding cattery while you go away. They don't give that cat back because he's yours — they give him back because they promised. And while he's in there, they set the rules: when he eats, whether he gets out to the yard, whether you may visit today. What you hold is a receipt.

The balance in your banking app works in exactly the same way. It isn't your money — it's a promise that they'll hand it back if you ask nicely and within opening hours. They can freeze it, demand you explain where it came from, or simply decide that today isn't the day. You don't need exotic examples to find this: it happens to ordinary people every week.

Self-custody is fetching the cat and bringing him home. With your own private keys there is nobody to ask: the balance answers to you and to no one else, twenty-four hours a day, with no middleman and no permission. It's the feline instinct applied to money — master of your own territory, uncontrollable and free. And Lightning is that house's cat flap: you go out whenever you like, without ringing anyone's bell.

This comes with the full weight of responsibility, and it would be dishonest to pretend otherwise. There's no help desk, no password recovery, nobody to call at three in the morning. Freedom always costs exactly this — and that's precisely why it's worth something.

What good is a perfect battery if spending a single cent means waiting ten minutes and paying a fee larger than the purchase itself? That's what the Lightning Network was built for: the smart cat flap through which energy leaves without friction.

Instead of carving every movement into the blockchain, two parties open a channel between them and exchange value directly, as many times as they like. The payment travels through channels that are already open and arrives in less time than a cat takes to land after a jump. Fees of a few cents, even on tiny amounts.

This is what makes something like a zap possible: sending five hundred sats to someone on the other side of the world because you liked what they made — no platform in between, no thirty per cent cut, no seven business days. Storing energy is half the revolution. Letting it move freely is the other half.

The twelve or twenty-four words of your wallet aren't a password: they are the wallet. Whoever has them has everything; whoever loses them loses everything, with no appeal and no exception.

So write them on paper or stamp them into metal, keep them in more than one physical place, and never — never — write them anywhere there's a screen: no photographs, no notes app, no password manager, no draft emails. A cat hides its food in three separate places by instinct. Do the same with yours.