Monday, 15 September 2025

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📈 Data to start your week

Weekends off ↓ Nasal spray effectiveness ↑ Working-age income ↓

Azeem Azhar and Hannah Petrovic

Sep 15

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Hi all,

Here’s your Monday round-up of data driving conversations this week – 10 stats, in less than 250 words.

Let’s go!

Weekends off ↓ San Franciscans are increasingly working Saturdays.
Working-age income ↓ Working-age adults in France now have lower incomes than pensioners.
Grok 4 costs ↑ Epoch AI estimates that Grok 4’s training compute cost half a billion dollars, 5x that of GPT-4.
New infrastructure ↑ Data center spending is now 8x that of 2021.