Sheet 27 / 35 Mathematics

Bundling and reach

Passport

Rock
Mathematics
Depth
2 · Excavator
Time to dig
1–3 years
Capital
◐ · medium
Solo
~ partly
AI
→ eroding
Rent
✗ not for sale

Essence

Economies of scope: selling the next product to the same customer base at almost no cost. A bundle presses on single-product companies with arithmetic — their product competes with "included in what you already pay for". Hence Jim Barksdale's famous line that there are only two ways to make money: bundling and unbundling.

How it is built

Microsoft 365 — the bundle as a weapon of mass destruction

Word, Excel, Teams, OneDrive, Defender: every new product enters a subscription the company already pays for — zero customer acquisition cost, instant distribution. The story of Teams against Slack is one case of the general mechanism: a single-product vendor is not fighting a product, it is fighting "free, in the package".

Amazon Prime — the bundle as retention glue

Delivery plus video plus music plus photos: each component is middling on its own, but the combination makes cancelling irrational — something in the set is always needed. Here the bundle works not to sell something new but to zero out churn across everything.

Adobe Creative Cloud — from boxes to a subscription bundle

The move from selling separate boxes to one subscription to everything: a designer who needs only Photoshop is sold twenty applications, and the combined price makes focused competitors look expensive next to the zero marginal price of one more tool inside CC.

How it is bypassed

Unbundling with best-in-class

The average module of a bundle is vulnerable to a focused single-product company: Figma killed Adobe's bundled design tool XD so thoroughly that Adobe tried to buy Figma for $20 billion, and Slack opened up Skype for Business the same way. The classic map of attack is Craigslist, taken apart into dozens of companies — Airbnb, Zillow, Indeed — each of which took one section and made it ten times better. The attacker picks the module where the pain is highest and the bundle's quality lowest.

Regulatory unbundling

The giants' bundles are a permanent antitrust target, from the Microsoft case over Internet Explorer to the unbundling of Teams from Office after Slack's EU complaint. The attacker files complaints not instead of building a product but alongside it: the legal track softens the bundle, the product track takes what comes loose.

Rebundling around a new axis

What is unbundled gets reassembled — by someone else and around a different centre: streaming took cable apart and is now stitching itself into packages; the indie world assembled Setapp, a subscription bundle of independent Mac apps, as a collective answer by small players to the economics of giants. The attacker need not fight somebody else's bundle; it can build its own on a new axis of aggregation.

Verdict

A bundle is a moat made of zero acquisition cost on your own base. It is bypassed by focused superiority in one module, by antitrust, and by assembling a new bundle around a new axis.