The current era of exploitative digital platforms was made possible by a multi-decade failure to enforce antitrust laws. This policy shift allowed companies to buy rivals (e.g., Facebook buying Instagram) and engage in predatory pricing (e.g., Uber), creating the monopolies that can now extract value without competitive consequence.

Platforms grew dominant by acquiring competitors, a direct result of failed antitrust enforcement. Cory Doctorow argues debates over intermediary liability (e.g., Section 230) are a distraction from the core issue: a decades-long drawdown of anti-monopoly law.

A company's monopoly power can be measured not just by its pricing power, but by the 'noneconomic costs' it imposes on society. Dominant platforms can ignore negative externalities, like their product's impact on teen mental health, because their market position insulates them from accountability and user churn.

Platforms first attract users with good service, then lock them in. Next, they worsen the user experience to benefit business customers. Finally, they squeeze business customers, extracting all value for shareholders, leaving behind a dysfunctional service.

While network effects drive consolidation in tech, a powerful counter-force prevents monopolies. Large enterprise customers intentionally support multiple major players (e.g., AWS, GCP, Azure) to avoid vendor lock-in and maintain negotiating power, naturally creating a market with two to three leaders.

Dominant tech platforms lack the market incentive to open their ecosystems. Berners-Lee argues that government intervention is the only viable path to mandate interoperability and break down digital walled gardens, as market forces alone have failed.

Laws intended for copyright, like the DMCA's anti-circumvention clause, are weaponized by platforms. They make it a felony to create software that modifies an app's behavior (e.g., an ad-blocker), preventing competition and user choice.

Platforms first attract users with a great service, then pivot to monetizing those users for business customers, and finally extract all value for themselves, degrading the experience for everyone else. This cycle, termed "inshittification," is enabled by locking in users and businesses who become too dependent to leave.

The natural mechanics of network-based markets inherently lead to dominant players in search, social media, and browsers. This erodes the web's initial decentralized promise of "digital sovereignty" for individual users and creators.