If a fundamental problem is solved, all problems caused by it are taken care of in one shot.

Instead of solving for specific problems for one person, try to find a common pattern for most people in the same situation.

Once you see a pattern, you will also see a common solution. In fact, many times, individual issues turn out to be something anyone in that same situation will face. If not, simply list it down as a unique case.

Solving for fundamentals becomes especially important for systems, because they're required everywhere. Imagine making an ERP/CRM system for each person seperately. Only because it solves for all, it is useful.

Even if it's a system for you, it can't be called a system if it's useful just once. Only if it supports everytime, on time, can it be called a system.

So, solving fundamentals gives you a wider audience, lesser problems and a sustainable system.

Adios!