The paradox of big data spoils vaccination surveys

When Delphi-Facebook and the U.S. Census Bureau provided near-real time estimates of COVID-19 vaccine uptake last spring, their weekly surveys drew on responses from as many as 250,000 people.

The 20-year-old entrepreneur is a myth, according to study

Forget what you've heard about 22-year-old wunderkinds, sitting in the corner offices of their wildly popular Silicon Valley startups—if you want to find the most successful entrepreneurs, you have to go back a few decades.

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