Nearly everything we were told about food between about 1980 and 2015 turned out to be wrong, and almost nobody who told us has ever accounted for it.

Hot take: the reason nobody trusts polls any more isn't that polls got worse. It's that we started reading them as predictions instead of measurements, and then blamed them for failing at a job they never claimed to do.

Most political arguments look like disagreements about facts and are really disagreements about what matters. The first kind can be settled. Nobody in history has settled the second by producing a better statistic.

Sport is the only place left where we are collectively fine with someone being obviously, measurably better than everyone else, and I find it interesting that we cannot tolerate that anywhere else.

unpopular opinion but most "food deserts" are actually time deserts. the shop is there, people are working two jobs.

Won on the science, lost on the sequencing: almost nobody disputes the physics any more, and almost everybody disputes who pays first. Which means another decade spent explaining the greenhouse effect is a decade spent answering a question that stopped being asked.

Public transport should be judged on whether it is usable by someone with a pram, a suitcase and a bad knee — not on its top speed. Every network that passes that test turns out to be pleasant for everyone else too, and almost every network that fails it was designed around a commuter who is twenty-eight and carrying a laptop.

I have changed my mind about anonymity online, and I want to set out why, because I argued the other side for years. The case I used to make was straightforward. Anonymity protects the vulnerable — whistleblowers, people in hostile countries, anyone whose opinion could cost them a job. Real-name policies were introduced by companies with a commercial interest in identity, and they were sold with a safety argument that the evidence never really supported. All of that is still true and I have not stopped believing any of it. What changed is that I stopped treating anonymity as one thing. There is anonymity from the state, anonymity from your employer, anonymity from other users, and anonymity from the platform itself. These are four different properties. A system can give you the first three and none of the fourth, and for almost everyone that combination is what they actually want. The mistake I was making was arguing about a slider when the real question was who each end of it protects you from. Once I separated them, most of the disagreements I had been having turned out to be people defending different columns of the same table.

Cities keep building cycle lanes that stop. Just end, mid-road, and you are in traffic. What is the point of ninety percent of a cycle lane?

"Trauma" now stretches from genocide to a bad line manager, and somewhere in that stretch the word stopped doing any work at all.

A thing I cannot resolve about giving money to people begging. The argument against is well rehearsed and mostly correct: it may fund an addiction, it does not address the cause, the money would do more good given to an organisation set up to help, and the impulse is partly about how it makes me feel rather than what it does. The argument for is much shorter and I keep finding it harder to dismiss. Someone in front of me has asked for something I can trivially provide, and every framework I use to say no is a framework I constructed after the fact, sitting comfortably somewhere else. What I actually do is inconsistent — sometimes yes, sometimes no, and the variable is mostly my mood and how much of a hurry I am in, which is the worst possible basis. I would rather hold either position honestly than keep operating a policy that is really just weather.

Startups are a worse deal for employees than they were ten years ago. Same hours, same risk, a much thinner slice, and the exit that justified it happens far less often.

Everyone in this country has a story about a builder and I have started to think they are all the same story. Someone comes, quotes low, starts, disappears for eleven days, returns, discovers something behind a wall, revises the price upward by forty percent, and finishes to a standard you would describe as fine. You pay it. You tell the story at dinner parties as a comedy. Nothing happens to the builder. The reason it keeps happening is not that builders are dishonest. It is that almost nobody commissions building work often enough to get good at it. You will do this twice in your life. He does it every week. The information is entirely on one side, and no amount of getting three quotes fixes that, because you cannot evaluate the three quotes either. Every market where one side transacts constantly and the other transacts twice ends up like this. Estate agents. Garages. Funerals, most of all. It is not a moral failure of tradespeople, it is a structural feature of buying something rarely.

Small talk gets a terrible press, mostly from people who have never had to sit next to a stranger for two hours.

Something I have thought about a lot since I started managing people, which nobody warned me about: you cannot tell someone they are underperforming in a way that does not change the relationship permanently. I do not mean they resent you, though sometimes they do. I mean that afterwards, every ordinary interaction has a second layer. You ask how the weekend was and they are checking whether you are asking because you are being normal, or because you are softening something. That layer does not go away when the performance improves. It just gets quieter. I still think you have to do it. Letting someone carry on failing is worse, and the version where you say nothing and then act surprised at review time is the genuinely unkind option. But I have stopped pretending it is a neutral conversation that a good manager can have without cost. It costs something every time, and the honest thing is to spend it deliberately rather than believe the technique makes it free.

Most advice on how to argue better assumes both people want to find out what is true, and in most real arguments at least one person is defending a position they have already told other people they hold.

Test cricket is the only sport where the boring bit is the point and I will not be taking questions.

Open-plan schools, hospital targets and the gig economy will look like the same idea wearing three hats — measure the throughput, ignore the thing being thrown through.

Calling it phone addiction misses it. Most people are bored at work, and the phone is the only thing that isn't.

Index funds have made markets less efficient — half the money in the room is now buying without an opinion about anything.