The Netherlands is, depending on where you stand, either a remarkable feat of engineering or a very long argument with the sea.

About a third of the country sits below sea level. The land you walk on was, at some point, water. Drained, reclaimed, and held in place by centuries of dykes, pumps, and a national consensus that the sea is simply wrong about this. The Dutch have a word for this reclaimed land: polder. And they have a philosophy named after it: the poldermodel. The idea that any problem yields to negotiation, patience, and collective will.

I arrived in the Netherlands from Argentina with a background in engineering and a thermos for mate.

Mate is, in many ways, the opposite of the polder. Where the polder is engineered and deliberate, mate is warm and unhurried. You don’t have a mate alone. You pass the gourd around a circle. Someone talks. The conversation wanders. There’s no agenda. Eventually something gets said that matters.

PolderMate is what happens in between.

This blog will be about the things I find myself thinking about on trains and in airports. Aviation and air traffic management: the systems that separate aircraft at 37,000 feet, and what the data those systems produce can tell you if you know how to read it. Data engineering, architecture, the persistent gap between the model and the ground.

It will also be about energy. The infrastructure that moves electrons has more in common with the infrastructure that moves aircraft than most people expect. That overlap has started to interest me, and this seems like a good place to think it through.

And occasionally it will be about the world as it is right now, which is moving fast and in several directions at once. When something is happening that seems worth sitting with, I will sit with it here.

I have spent years at the intersection of aviation and data. Head of Data, university teacher in Buenos Aires, an Argentine voice in ICAO regional forums on ATM performance and surveillance. The European side of this world: Eurocontrol, EASA, the Maastricht UAC, the Single European Sky. I watched it from a distance for a long time. Now I am inside it, and things look different from here.

The posts will come when something is worth saying. Some will be technical and specific. Some will be more like the mate conversation: circling a problem without forcing a conclusion, arriving somewhere you did not plan.

If you work in aviation, energy, or data, you will find things here that connect directly to your work. If you do not, the gap between the model and the ground is, it turns out, a fairly universal condition.

Welcome to the polder. Pull up a chair.

— C.