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The S&P 500 fell 1.8% Friday and the Nasdaq 2.9%, closing a third straight losing week as worries grow that AI spending has run ahead of the returns. Intel had its worst day since 1974 (down 28.6%) on a weak forecast, and Amazon disclosed it burned $42.4 billion of free cash flow over 12 months after spending $94.8 billion on property and equipment, mostly AI.
With early access to Anthropic and OpenAI frontier models, Firefox has shipped more than seven times as many security fixes since February as in the same stretch of 2025. The new risk is attackers using older models to reverse-engineer a published fix before users update, so Mozilla moved to weekly releases, is holding back regression tests until fixes ship, and plans to stagger fixes so a renderer bug and a sandbox escape are never in the patch gap at the same time.
Beezer Clarkson of LGT Capital Partners and Amit Bhatti of TrueBridge say LPs expect a bonanza from venture firms piling into OpenAI and Anthropic — often several funds at the same firm in the same two companies, conflicts notwithstanding — and nobody is complaining. They still call it a "yellow light," and are uneasy about how quickly managers are coming back to raise new funds.
Vitalik Buterin reports on two experiments in using technology on purpose: stepping back from X's algorithmic feed in favor of a scoped client (Firefly), and 100 days with his phone on airplane mode by default, living on Wi-Fi, offline maps and local knowledge packs. He counts both as successes for privacy and mental space, at real costs, like being unable to receive SMS codes to book rides in Singapore.
