
For decades, the marketing funnel defined how businesses thought about growth. Awareness at the top, consideration in the middle, and conversion at the bottom. It suggested that if you push enough people into the system, revenue will come out the other side.
But today’s customer journey is not linear. It is continuous, social, and influenced by experience. That is why the funnel, while useful for analyzing stages, no longer captures how growth truly works.
The funnel was built for a transactional era. Once a customer converted, their role in the system effectively ended. Growth depended on constantly refilling the top because prospects dropped off at every stage.
This approach overemphasizes acquisition and treats conversion as the finish line. In reality, modern businesses thrive not just on new customers, but on retained and loyal ones. The funnel struggles to represent this compounding effect.
The flywheel model, popularized by companies like HubSpot, reframes growth as a circular system. Instead of pushing customers through and losing them, the flywheel treats them as a source of momentum.
When customers are attracted, engaged, and delighted, they refer others, leave reviews, and strengthen brand trust. Each positive experience adds energy to the system, accelerating growth over time. Customers do not exit; they power the wheel.
The real shift is philosophical. Funnels focus on throughput. Flywheels focus on momentum. Funnels ask how many leads were generated. Flywheels ask how much friction exists in the customer experience.
In a connected economy where trust spreads through networks, growth is not about pushing people through a pipeline. It is about building a system that compounds.
Conversion is no longer the end goal. Sustained momentum is.