Lumina, the genetically modified anti-tooth-decay bacterium that I wrote about in December, is back in the news after lowering its price from $20,000 to $250 and getting endorsements from Yishan Wong, Cremieux, and Richard Hanania (as well as anti-endorsements from Saloni and Stuart Ritchie). A few points that have come up:

https://www.astralcodexten.com/p/updates-on-lumina-probiotic