Was I wrong to be so bullish about AI? | Brief letters

We are currently hearing a lot about AI (This gung-ho government says we have nothing to fear from AI. Are you scared yet?, 31 March). As a former dairy farmer, I thought the AI man was the chap who visited on request to artificially inseminate our cows to get them in calf. With the current use of the initials meaning something rather different, I now wonder what he was actually doing.Kevin CaveneyGlastonbury, Somerset

To help those of us who have difficulty comprehending these things, you could usefully have told us how many Waleses might fit into the black hole (Ultramassive black hole discovered by UK astronomers, 29 March).Jim GolcherTowcester, Northamptonshire

It would perhaps assist Gerald Wells (Letters, 31 March) if so-called stately homes were given the more illuminative description of mansions of exploitation.George MarshallSt Leonards, East Sussex

How many of the enthusiasts for e-scooters to reduce car use will eventually realise that even a late running, poorly maintained and crowded bus is still a lot better at keeping the rain off (E-scooters: a tale of two cities as London and Paris plot different paths, 31 March)?Geoff ReidBradford