Anthropic announced on Monday that it has confidentially filed for an initial public offering, joining SpaceX and (reportedly) OpenAI in planning to list its shares. The three potential giga-IPOs could add as much as $4trn to the market value of listed American companies in a matter of months. Can the stockmarket handle this? Probably—but in the longer term, expect some indigestion.

Ukraine is now Europe’s war. American efforts to end the conflict have fizzled. And almost all aid to Ukraine now flows from the old continent. Yet European leaders still do not have a strategy for Ukraine that goes beyond maintaining its survival. Time is short, in part because Russia is escalating attacks on Kyiv and other cities.

Tonight on Inside Economics, Henry Curr, our economics editor, speaks to Gabriel Zucman, the left’s new favourite economist. It’s fair to say that Mr Zucman is far apart from The Economist on the political spectrum. Watch their discussion at 6pm London time.