So this is basically a modern approach to Danny Meyer's (Union Square Hospitality Group [1]) "collecting the dots" he described in his book Setting the Table [2].

His suggestion was to have staff listen to conversations (and have conversations with guests) and then record any interesting "dots" like a child having a graduation coming up or an anniversary just around the corner. That way on their next visit the staff could be well-prepared.

Click-bait headline makes you think otherwise, but this is just standard hospitality stuff.

[1] https://www.ushg.com/

[2] https://www.amazon.com/Setting-Table-Transforming-Hospitalit...