TL;DR
Meat grown from animal cells in steel tanks, a staple of mid-century science fiction, is now legal food in several countries. Roughly a dozen cultivated-meat products have been authorized worldwide, five of them in the United States, and Singapore just cleared its first cultivated beef, a steak from Aleph Farms. The strange part is that almost nobody can eat any of it. No product sells at commercial scale anywhere, one company shut down soon after winning U.S. approval, and investment has collapsed from nearly a billion dollars a year to a few tens of millions. Regulators are saying yes faster than factories can deliver. If producers can keep cutting costs, meat without the slaughterhouse could still reach ordinary menus; if the money does not come back, the approvals may sit on paper for a decade or more.
Below the line, for paid subscribers: The full story: where it stands, how we got here and what's dated next; our Odds board on 5 milestones, starting with "Aleph Farms' cultivated steak is served in Singapore restaurants by 2027"; and every source.