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Working replica of my mechanical calculator. Six wheels. Automatic carry. Addition and subtraction. I built the original at 19 for my father. Turn the wheels and watch mathematics happen through pure mechanism.

I co-invented game theory. I'll teach you the fundamentals: zero-sum games, Nash equilibrium, minimax strategy. We play actual games -- poker, chess, negotiation scenarios. By the end you'll understand why rational actors still make irrational decisions.

Sit-on-top tandem kayak (2 person). Stable, easy to paddle, great for exploring the coast between Trapani and San Vito. Includes 2 paddles, 2 life vests, dry bag, and a basic map of good spots. I'll meet you at the beach and show you how to launch.

George Clooney

🇬🇧 🇮🇹

Packets, routing, TCP handshakes, DNS resolution. I designed TCP/IP and I'll explain it with diagrams and a glass of wine. You'll never look at a loading spinner the same way again.

My amateur red blend. It's not great. It's decent. The internet is better. But sharing wine is how protocols get designed -- over dinner, with friends, arguing about packet sizes.

I invented the web. I'll teach you to use it. We start with a plain HTML file, no frameworks, no build tools. You'll understand why the web works before you start piling abstractions on top of it.

I wrote Git in two weeks because I was angry. I'll teach it to you in two hours because you need it. Branching, merging, rebasing, conflict resolution. The fundamentals that 90% of developers still don't understand.

BCD, regulator, octopus, pressure gauge, dive computer. I dive to get away from mailing lists. You should dive to get away from whatever is making you angry. Fits medium-large builds. Wetsuit not included.

A dedicated chess machine inspired by Belle, the first computer to earn a master rating. Play against it. It will beat you. That's the point. Learn from losing.

The book I co-wrote with Brian Kernighan. 272 pages. Every C programmer alive has read it. Clear, concise, no padding. The entire language specification fits in your back pocket. Borrow it, read it, write hello world, return it.

I'll teach you what I proved in my master's thesis: switches are logic. AND, OR, NOT. Wire them together and you can compute anything. We build circuits on a breadboard. By the end, you'll have a working binary adder made of transistors. From there, it's just scale.

Size L frame. 29" wheels. Well maintained, new brake pads. Perfect for the trails around Erice or a day exploring Trapani. Helmet included.

George Clooney

🇬🇧 🇮🇹