The advice to "serve a customer for 10 years" is incomplete. A more foundational step is to first understand your own authentic identity. Building products that reflect who you are naturally attracts the right customer, creating genuine "customer-founder fit" and avoiding the burnout of "putting on a show."

Don't start a company in a space you're indifferent to and ignorant of. Your founding idea must be anchored in either deep domain expertise ("what you know") or a genuine, intense passion for the problem ("what you care about"). Lacking both is playing on "extra hard mode."

Instead of optimizing for a quick win, founders should be "greedy" and select a problem so compelling they can envision working on it for 10-20 years. This long-term alignment is critical for avoiding the burnout and cynicism that comes from building a business you're not passionate about. The problem itself must be the primary source of motivation.

If you don't have an industry or idea, don't start with product brainstorming. Start by identifying groups of people you'd genuinely enjoy serving. The foundation of a sustainable business is a founder's deep connection to their customer, which provides motivation to solve their problems.

Instead of searching for a market to serve, founders should solve a problem they personally experience. This "bottom-up" approach guarantees product-market fit for at least one person—the founder—providing a solid foundation to build upon and avoiding the common failure of abstract, top-down market analysis.

The most potent business ideas are discovered, not forced. They arise naturally from being an active participant in a niche community and experiencing its problems firsthand. Instead of searching for 'an idea,' immerse yourself in a passion; the right opportunity will present itself.

Don't jump straight to building an MVP. The founders of unicorn Ada spent a full year working as customer support agents for other companies. This deep, immersive research allowed them to gain unique insights that competitors, who only had a surface-level idea, could never discover.

Using a child's toy analogy, demand is a pre-existing hole (e.g., a star shape) and your product is the block. Founders fail when they build a block and then search for a hole it fits. The real job is to first deeply understand the shape of the hole, then craft a block that fits it perfectly.

To truly understand a B2B customer's pain, interviews are not enough. The best founders immerse themselves completely by 'going native'—taking a temporary job at a target company to experience their problems firsthand. This uncovers authentic needs that surface-level research misses.