I'm a big fan of Douglas Adams, but there is a reason he was (best known as) a comedy writer and not, for example, a sociologist. Trotting this out adds nothing to the conversation and just comes across as vaguely ageist.
Call it ageist, but this aligns with the conversation about "it" at my job. The cutoff is around 42, but there is a significant split by age group of engineers on the value of "it".
There is some truth to it, but it also isn’t exactly accurate. #2 isn’t true for me in its generality. Some new things were exciting and revolutionary, but by no means all. Regarding #3, some new things still excite me today, and many more could excite me, but nobody is making them. Even #1 isn’t accurate. What’s true is that “excitability” goes down over time the more one is aware of the flaws and trade-offs.
I don't think it has to do with age but more than active years of work experience in the field. There is some strong correlation but, I'm 44 and with 3 years of experience I have integrated AI tools in my workflow because they're just tools right now and it would be silly not to leverage it.
I added them, because they are a plug-in like anything else, but rarely find a use for them. They are best at helping me remember syntax for single statements, nothing more. Like autocorrect but vaguer.
I found the parent comment humorous as it cites a lighthearted quote from Douglas Adams. it is relevant to the conversation in a similar way an xkcd is, when called relevant.