That's not how that works; "someone is doing this" doesn't prove a rule "no one is doing this" -- quite the opposite
"The exception that proves the rule" is for things like "closed Thursdays" (rule = open on other days), "no parking after 8 PM" (rule = parking allowed before 8 PM), "no refunds on games" (rule = refunds available on other items), etc.
You're confusing "The Exception That Proves the Rule" (in English, as used colloquially) with "exceptio probat regulam in casibus non exceptis" (in Latin, which has a use similar to what you're describing.) While the law attempts to be precise, common usage embraces ambiguity.
They really mean the same. What changed was the meaning of the word "proves" in English. When the saying was coined it meant "tests", not "confirms". People kept saying the...saying even though they were using it backwards.
> "The exception that proves the rule" is a saying whose meaning is contested. Henry Watson Fowler's Modern English Usage identifies five ways in which the phrase has been used…
Personally, I use it in cases like:
- Rule: Don't do X, it's a bad idea.
- Exception: One time, someone with very special circumstances did X, and with a lot of finagling and effort they managed to make it work sort of OK.
Or:
- Rule: This fortress was an impregnable defensive position.
- Exception: In A.D. 1305, the fortress was taken, with great difficulty and many casualties, by an attacking army 100 times larger than the defending force.
Or:
- Rule: This river never overflows its banks.
- Exception: Once in history, on the day of the biggest rainstorm in 1000 years, the river is recorded to have overflowed its banks very slightly for a short time.
The exception proves the rule because the circumstances necessary for the exception to occur were themselves exceptional.
I believe the phrase is used to mean something like "the fact that you found something that is obviously an exception proves that the rule normally applies."
For example, imagine if your skydiving instructor said "if your parachute doesn't open when you jump out of the airplane, you're gonna die", and you replied with "well actually that's not true, Vesna Vulović survived a fall from high altitude." Yeah, okay. The fact that you had to be smarty-pants about it and dig up a random exception really proves the point they were trying to make.
In this example the “exception” that proves the rule though was not a smarty-pants special circumstance. Using AI for shopping is just one of its many normal usages and if anything proves it is used by normal people doing normal things. It’s not like the rare example that happens once in a hundred years.
Ok but I’m not sure the relevance here? Everyone has unique needs, if they want to get specific enough. The promise of AI here is that anyone can get as absurdly specific as they want, instead of accepting whatever advertising bucket they’d be traditionally sorted into.
Fair enough, I can buy that. I feel like in most cases where I've heard it it wasn't nearly so clear cut, so that logic wasn't obvious and it sounded like nonsense
I'm not really 100% certain this is the correct or only meaning, for what it's worth, so don't take me as authority. It's just the common thread I've been able to gather from context over time. If you're gonna use it (I rarely do) it'd be worth researching it to make sure you're using it correctly...
I knew what he meant and still thought it spawned an interesting discussion. Mainly because I've never quite intuitively understood that saying. So, I did not take it as OP being tedious about it at all.
That's not how that works; "someone is doing this" doesn't prove a rule "no one is doing this" -- quite the opposite
"The exception that proves the rule" is for things like "closed Thursdays" (rule = open on other days), "no parking after 8 PM" (rule = parking allowed before 8 PM), "no refunds on games" (rule = refunds available on other items), etc.