The value of software is optionality.
Software is worth building because it lets you change your mind later. Every architecture choice should be made assuming you're wrong about what comes next. The purpose of design is not purity. It's keeping your options open so you can adapt when the world surprises you.
Reading path
Post 1 of 5
You Are Always Wrong
Why assuming code will need to change leads to better software design and how to prepare for inevitable requirements changes
Post 2 of 5
The Value of Software is in Its Optionality
Why software's real value lies not in what it does today, but in what it allows you to do tomorrow when circumstances change
Post 3 of 5
Choosing an Architecture
A practical guide to selecting the right architectural pattern based on what actually changes in your codebase
Post 4 of 5
Test Behavior, Not Implementation
Why tests coupled to implementation details prevent refactoring while behavior-focused tests enable confident change
Post 5 of 5
Open/Closed Principle
How to design software that is open for extension but closed for modification