They’re one of the two big names in legal data - Thomson Reuters Westlaw and RELX LexisNexis. They’re not just search engines for law, but also hubs for information about how laws are being applied with articles from their in house lawyers (PSLs, professional support lawyers - most big law firms have them as well to perform much the same function) that summarise current case law so that lawyers don’t have to read through all the judgements themselves.

If AI tooling starts to seriously chip away at those foundations then it puts a large chunk of their business at risk.

The commodification of expertise writ large is a bit mind boggling to contemplate.