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businessSunday, October 4, 2026

Fusion, batteries, and the AI capital question

Today's business news splits cleanly in two. On one side, real bets on physical stuff: a fusion reactor breaks ground, battery startups chase European demand, and Alibaba eyes Spanish solar for data centers. On the other, the nagging question of whether AI hyperscalers are building castles on sand, as a former OpenAI safety lead resigns and a finance professor floats the 'largest misallocation of capital in history.'

Sources
+8

Hard tech, real ground

While the AI capital debate simmers, a few companies are actually pouring concrete and shipping product.

#03qz.comOct 4
0
Alibaba in early talks for Spanish solar-powered data center

Alibaba is in early talks to power a Spanish data center with solar from a single plant. It's preliminary, but it shows hyperscalers are hunting for clean energy deals in Europe, not just building wherever grid capacity exists.

The AI capital question

Two pieces from the same outlet frame the day's central tension: is the industry building recklessly, or just building?

Also today15

More roundups that day