There is absolutely no "I" in modern "AIs". They are sophisticated language models that sort of understand what you're saying, then comes up with an answer that more or less consists of the same pattern. That's it. We're tricked into believing the AI's through their perfect command of language, which triggers some sort of cognitive bias in humans:
Imagine you're presented with two solutions to a problem you don't have any previous knowledge on: One (which might be a brilliant one) is presented by someone who stumbles through their sentences - maybe because its not their native language - and in a maybe unstructured way , the other (which may be total bullshit) is presented perfectly in well-formed language. Whom will you believe? Its likely the perfect presenter, because you will silently put the presenter's command of the problem space on the same level as their command of the language.
I had to chuckle as this reminded me of some interviews I had to conduct about a year ago - when just that situation was presented to me. It's hard to overcome the natural bias towards what looks polished and professional - but I was chosen to be on the interview panel because I am a natrual sceptic with an aversion to those that I think over polish their presentation - I was looking for content - and I found it in the individual who was perhaps more nervous, but clearly understood the request better and had thought about his answer and my interrogation of it - he got the job, although my managers wanted to employ the other guy because he was "more professional"
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I always disable AI on Browsers, Phones, as I do not want to be told something I already know.
Also AI looks to be just a big database, and this could be an attempt to make databases interesting...
I like to stick human experts, not collective data that maybe wrong.
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Sorry for going off topic, but the information returned by the DATE function is a floating point number, so it is just a matter manipulating the the floating point number to get the date format, as suggested earlier the commented description in the Minerva source code could be used to develop an algorithm.