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Proof of Concept
Weekly notes on design, tech, and building
Free every Sunday.
Illustrated issues
21 recent Proof of Concept posts with cover art — drag or scroll the canvas, then tap a cover to read on Substack.

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling

The Research Builder
Issue 319: AI makes building cheaper. It makes research more important.

Personal software’s proximity of work
Issue 317: When the graph is the model, personal software is a collaboration path

The Design GM
Issue 316: When a designer acts like a owner

Work beyond laptops
Issue 314: Multimodal AI will (hopefully) change how we work

Ecosystem design
Issue 313: The best products are worlds

The ledger of design
Issue 312: AI changes credibility at work

Revising
Issue 311: What the film “Heat ”teaches us about revising without losing the vision

The Victorverse
Issue 310: The definitive Bret Victor essay ranking

Agent Experience
Issue 309: The next design challenge is how humans and AI agents work together

Climbing the pocket of pressure
Issue 308: How to not panic at work

Training design senses
Issue 307: Why good design judgment must be trained

Hyper-local, hyper-cloud
Issue 306: Have your cake and eat it: why agents belong local and cloud

The Tao of Software Design
Issue 305: Fluent and adaptive across many disciplines

Mastering the materials
Issue 304: Tools change but knowing the material does not

The craft of speaking
Issue 303: Delivering on a message that sparks someone

Design leadership plate tectonics
Issue 302: The underlying disruption that'll soon hit

The first hour of work
Issue 301: Setting the daily tempo

Reflecting on the 200 series
Issue 300: A look back at the past 100 issues

Staying creative during travel
Lean tools, hard constraints, better ideas

Special moves and combos
Issue 298: Mastery starts with button mashing

Escape from agentic loop
Issue 297: Human-in-the-Loop is the new doom scrolling