Pay your taxes. Then pay again to protect your shop. Paris police have advised shopkeepers to hire private security ahead of today’s protests. If basic protection costs extra, what exactly is the state’s side of the social contract?

After visiting the first Zuzalu, I was pretty sceptical about pop-ups. They’re starting to come of age now, though. Wide reach, real world results and proper business models. I’m bullish.

Bitcoiners called it again. A few months ago, Bitcoin was the canary in the coal mine. Over the summer, the Bitcoin ecosystem was hit first: the Coldcard firmware exploit, emergency patches at Core Lightning, and a flood of AI-generated bug reports. The base protocol held. The weaknesses were in the software built around it, and the response was a volunteer red team pointing AI at hundreds of Bitcoin repositories and fixing what it found in the open. This week the rest of the internet got its turn. PHP2Shell, a set of flaws that had sat in PHP for over a decade, was found with frontier AI models and patched on 21 October. PHP runs roughly three quarters of the web, and governments took their own sites offline while they scrambled to update. Bitcoin went first because it is the biggest open bug bounty in the world, and anything with money attached gets probed first. Banks, payment rails, hospitals and government databases are next, and most have relied for decades on obscurity and slow attackers. That cover is gone. It will probably be quite painful for a while. What survives will be simpler, tougher and more honest about its own weaknesses. Stress is how resilient systems get built.

Silicon Valley made the young founder an icon. Building a Free City might favour the person with grey hair. You have to convince a government to let you try. @patrissimo explains why experience counts when your startup is a city.

I've got @TelamonArdavani from @JoinEdgeCity on the podcast this Friday. I've been on a long journey with pop-up cities. I thought the early ones had put me off for life. I get it now.

I've always wanted to work in mining. Until that time I will have to live vicariously through @dusan_matuska. Hard work paying off. You love to see it.

Thought experiment: If you're one of the first residents of a Free City, you're helping make it valuable. Should that earn you a share of the business running it, or is owning a plot of land enough?

I was thinking this morning: Are most Free Cities marketed to people who already agree with the idea? Obviously, the real test is whether someone who has never read a book about governance would move there simply because daily life is better. I think that @CiudadMorazan is a good example of a place that attracts people because life it better inside, but they don't do traditional marketing as far as I know. Is there some truth here?