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Private piano lessons focusing on touch, pedaling, and rubato. I don't teach you to play loud. I teach you to play with feeling. Bring your worst piece -- we'll find the music hiding inside it.

I started singing gospel in church. I ended singing everything. I'll help you find your voice -- not my voice, YOUR voice. We work on breath control, vibrato, and the thing nobody teaches: vulnerability. If you're not scared when you sing, you're not singing hard enough.

The New Orleans piano style: rolling left hand, triplet feel, second-line rhythm. I'll teach you Blueberry Hill and Ain't That a Shame. Creole cooking playlist included because you can't play this music hungry.

I don't teach you to play pretty. I teach you to play LOUD. Standing up. Kicking the bench. One foot on the keys. The piano is not a delicate instrument -- it's a 900-pound percussion weapon and you need to HIT IT. A-WOP-BOP-A-LOO-BOP!

Fermat and I invented probability theory by analyzing gambling. I'll teach you expected value, risk assessment, and Pascal's Wager. You'll leave understanding why the house always wins and why you should still play.

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.

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.

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.

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.

6 practice locks from simple to complex. I was fascinated by locks -- the engineering is beautiful. Pin tumbler, wafer, disc detainer. Legal to own, useful to understand, excellent for developing mechanical intuition.

Learn the fundamentals of code-breaking. Caesar ciphers, substitution ciphers, frequency analysis, and the principles behind Enigma. No math degree required -- just patience and the willingness to think backwards.

Working replica of the Wehrmacht 3-rotor Enigma. 159 quintillion possible settings. Type a letter, the rotors turn, the lampboard lights up the encrypted letter. I broke it with logic, not brute force. Try to crack a message yourself -- I'll give you hints.