Disruptive Innovation

It's like a cheap product ignored by mainstream shoppers that quietly improves in a side market until it takes over the whole aisle.

Definition An innovation that starts at the bottom or outside an existing market with lower performance and a cheaper price. Mainstream customers initially dismiss it as inadequate, but it steadily improves among its own niche buyers until it eventually overtakes the established market.

The Video Rental Service You Had to Wait Days For

When DVD mail-rental services first launched, they seemed worse than the neighborhood video store in almost every way. You couldn't grab a movie and watch it that evening; you had to wait days for your mailbox.

Dedicated video store customers had zero reason to switch. But it worked for an entirely different crowd: people living far from rental shops, film buffs hunting for obscure classics rather than new releases, and early internet shoppers. Its first customers were not the video store's best customers.

What happened next is the core of this concept. The mail-order service shifted to online streaming, letting people play movies instantly. Once that wait time vanished, it delivered everything traditional rental regulars ever wanted—and more.

The real difference wasn't simply having physical stores or not. In fact, giant rental chains launched their own mail services and gained plenty of subscribers for a time. The real focus here isn't the corporate players, but what that bottom-up product actually looked like.

DVD-by-mail service once unfit for store regulars suits others, then wins regulars over once wait is gone To store regulars To other users Hide today Home mailbox Has older movies No wait now, rises to left regular tier

Two Footholds at the Bottom

Bottom-up products typically take root in one of two places. The first is the low end of an existing market.

Leading incumbents make their products better every year. Eventually, they overshoot what average people actually need. Cheaper, simpler products sell to these overserved customers first. Since profit margins here are razor-thin, incumbents gladly surrender this tier and focus on higher-end buyers.

The second foothold is non-consumers—people who previously couldn't afford or understand existing products. Early personal computers followed this path. Compared to corporate mainframes, early PCs were slow and underpowered, but they were bought by people who could never afford a mainframe. As companies sold to this new audience, manufacturing expertise grew and prices plunged.

The counterpart to this is sustaining innovation. Sustaining innovation makes products better along dimensions mainstream customers already care about, whereas disruptive innovation starts in a different spot, initially falling short on those traditional metrics. Boosting screen resolution or extending battery life belongs to the former.

Two entry points in a 3-tier market: low end & non-consumers Cheap & inferior, moving up High-end market Mid market ① Low end ② Non-consumers

To Be Precise: Not Everything That Shakes an Industry Qualifies

Today, people slap this label on virtually any service that disrupts an industry. But the original definition is much narrower. The researchers who coined the theory pointed to ride-hailing services like Uber and argued they are not disruptive innovations. Uber didn't start at the low end or create new consumers; it targeted existing taxi riders in cities where taxi systems were already working well.

Another frequently confused term is the Innovator's Dilemma. These two concepts are two sides of the same coin. Disruptive innovation describes the underdog technology or product creeping up from below, while the Innovator's Dilemma describes how incumbent companies make perfectly rational decisions yet still lose ground.

Crucially, disruptive innovation is a multi-year process, not a label for a single product snapshot. On day one, waiting days for a DVD in the mail was simply an inconvenient way to rent a movie.

That's why this theory isn't a fortune-telling tool. Not every cheap underdog ascends the ladder, nor does every early pioneer win the market. What it does give us is a sharper lens: instead of dismissing low-cost, inferior products as "useless," we learn to ask who is buying them today and how fast they are getting better.

🤔 Common misconceptions

✕ Myth

Disruptive innovation means launching a breakthrough, superior technology that instantly blows existing products out of the water.

✓ Fact

The original meaning is practically the opposite. It begins with an inferior, cheaper product that mainstream customers overlook. Improving performance along attributes existing customers already value is actually called sustaining innovation.

✕ Myth

Any groundbreaking business that shakes up an industry counts as disruptive innovation.

✓ Fact

Theorists like Clayton Christensen noted that ride-hailing apps like Uber, while undeniably groundbreaking, are not disruptive innovations by definition. They launched right into established markets with a premium, convenient experience for people already hailing rides.

✕ Myth

Selling a cheap product with lower performance automatically makes it a disruptive innovation.

✓ Fact

That just makes it an inexpensive product. It only becomes disruptive innovation if it steadily improves within its niche until it reaches the quality mainstream buyers demand. It refers to an evolutionary process over time, not a static product category.

🧺 Where you meet it

1 DVD mail rentals required waiting several days and couldn't satisfy regular video store visitors at first, but they gained ground with remote residents and classic movie fans.
2 Early personal computers were far slower and less capable than corporate mainframes, but they found an audience among everyday people who could never afford a mainframe.
💡 In one sentence

Disruptive innovation is a process where an initially inferior, cheaper product—ignored by mainstream buyers—takes root among overlooked customers, gradually improves, and eventually overtakes the dominant market.