A scientist switched jobs and caused Google's parent company to drop 5%.

It's that dramatic. Alphabet fell nearly 5% today, and one of the reasons uncovered by the market is a Reuters report that a scientist from DeepMind is leaving, heading to Anthropic.
One person. A company worth trillions.
The lost market value is enough to buy several unicorns.
This is the reality of the top-tier talent scarcity in the AI industry in 2026—so severe that the destination of a researcher can be directly used as a barometer of a company's competitiveness, written into financial headlines, and reflected in stock prices.
Chips need to be fought over, computing power needs to be fought over, electricity needs to be fought over, and now even "brainpower" has become the most scarce resource, and the most fiercely contested one.
Recently, Anthropic has been stuck tightly on export controls, with overseas operations hindered, yet they still managed to poach top talent from Google.
While being restrained, they are still competing for people—you can see how unreasonable this battle is.
The giants have spent hundreds of billions building data centers, only to find that the most expensive part of the cost might not be the chips, but the few people who know how to use those chips.
When the talent war reaches this level, retail investors aren’t watching whose model is stronger—they’re watching where the money and people are flowing.
Where the flow goes, that’s the next story.