Market disruption happens when a new entrant fundamentally changes how an industry works — usually by serving an overlooked need, using new technology, or offering a dramatically different business model.
Clayton Christensen’s framework distinguishes two types:
- Sustaining innovation — making existing products better for existing customers. Incumbents usually win these.
- Disruptive innovation — starting with a simpler, cheaper, or more accessible product that serves non-consumers or the low end. Incumbents ignore it because the margins are too small. Then it improves until it eats the whole market.
Classic examples:
- Netflix started with mail-order DVDs (lower end of the market) and evolved into streaming that killed Blockbuster
- Airbnb started with air mattresses in living rooms — not real competition for hotels. Until it was.
- Wikipedia — free, crowd-sourced, “lower quality” than Britannica. Then it became the world’s default encyclopedia.
How disruption typically unfolds:
- Incumbent dominates with a polished product for demanding customers
- Disruptor enters with a “worse” product for a different or underserved audience
- Incumbent ignores it — the margins are too low, the market is too small
- Disruptor improves rapidly while the incumbent over-serves their existing customers
- Disruptor captures the mainstream. Incumbent scrambles. Often too late.
The lesson for entrepreneurs: don’t try to out-execute the incumbent at their own game. Find the angle they’re ignoring. Serve the people they think are too small to matter. That’s where disruption begins.
Related: Lean Startup, Building the next unicorn, Trendwatching