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Personal Interests

Beyond coding, here's what I'm passionate about and how I spend my free time

🎵

Music & Creative

Instruments

  • Piano for harmony, ear training, and arranging ideas.
  • Acoustic and electric guitar for rhythm and lead; comfortable with alternate tunings.
  • Bass guitar for groove and pocket—locking in with drums.
  • Drums (learning): fundamentals, rudiments, and limb independence.

Genres & influences

  • Classic rock (60s–90s): storytelling, raw energy, and live performance ethos.
  • K‑pop (LE SSERAFIM, IU): production quality, melody writing, and arrangement.
  • Beatles deep cuts: can name many tracks quickly; fascinated by their studio evolution.

Projects & learning

  • Practice routine blending technique, repertoire, and improvisation.
  • Recording experiments; learning basic mixing/mastering chains.
  • Jigsaw puzzles as a meditative outlet between practice blocks.
PianoGuitarBass GuitarDrums (Learning)Classic RockK‑popJigsaw Puzzles
Studio setup with instruments: drums, guitar, and keyboard
Marathon runner on road with sunrise
🏃‍♂️

Athletics & Running

Background

  • High school track & cross-country captain; specialized in the 400m hurdles.
  • Transitioned to distance running after HS to explore endurance challenges.

Training approach

  • 50+ miles/week base with periodized blocks (base, build, peak, taper).
  • Quality sessions: tempo, intervals, long runs with progression finish.
  • Strength/mobility to support form, reduce injury risk, and improve economy.

Races & goals

  • Completed Ann Arbor Marathon; next big aspiration is the Boston Marathon.
  • Mix of local 5Ks/10Ks for sharpening and benchmarking.

Mindset & crossover

  • Running as discipline, structure, and long‑term goal setting.
  • Metaphor for coding/research: long cycles, resilience, measurable progress.

Tools & tracking

  • Training logs and performance metrics feed an interest in data analysis/visualization.
  • Use of GPS wearables and simple spreadsheets to track volume and intensity.
Track (400m hurdles)Marathon RunningAnn Arbor MarathonBoston Marathon Goal
📈

Economics

Interests

  • Abstract modeling and reasoning—why clean formalism clarifies intuition.
  • Demand, substitution effects, and the Slutsky decomposition as core building blocks.
  • Neutral rate of interest (r*): wrote for the Michigan Journal of Economics here.

Math & tools

  • Calculus foundations; deepening probability, statistics, and linear algebra.
  • Comfort with optimization basics and comparative statics.

Data & behavior

  • Curious about how data + incentives + behavior interact in real systems.
  • Interest in visualizing responses to shocks and policy changes.
Micro TheorySlutskyNeutral RateStats & ProbabilityData & Incentives
Economic graphs and notebook on desk
Zach Yoon-Kim

Thanks for visiting!

Let's connect and build something amazing together

I'm always excited to collaborate on new projects, discuss innovative ideas, or just chat about technology and life. Whether you're looking for a developer, have a cool project idea, or want to grab coffee (virtual or in-person), I'd love to hear from you!

Let's Connect

University of Michigan

Computer Science & Mathematics

Winchester, MA

© 2025 Zach Yoon-Kim. All rights reserved.

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