Wednesday links: running the playbook

MarketsCorporate profit margins keep rising. (chartkidmatt.com)Micron ($MU) is the fastest company, by far, from $500 billion to $1 trillion in market cap. (wsj.com)ETFsCharles Schwab ($SCHW) and Vanguard are neck-and-neck when it comes to ETF fees. (citywire.com)The Roundhill Memory ETF ($DRAM) is the fastest ETF to $10 billion and $11 billion... (ft.com)SpaceXFTSE Russell wants in on the SpaceX bandwagon. (ft.com)Do data centers in space make sense? (stratechery.com)Eli LillyEli Lilly ($LLY) is on a buying spree outside of its obesity business. (msn.com)Eli Lilly ($LLY) is buying three vaccine startups. (wsj.com)AIHow the bests analysts use AI. (optimisticallie.com)Do we really want to interact with 'digital twins'? (om.co)How writers can use AI without letting AI actually write. (slate.com)CybersecurityThe Cybersecurity and Infrastructure Security Agency has been gutted. (axios.com)What Mythos is teaching security researchers. (politico.com)Inside the UK's A.I. Security Institute.