Isn’t the Pythagorean theorem less about the fact that a diagonal is shorter than taking a corner (which is indeed obvious) and more about calculating how much shorter it is?
You re-read sentences much more often than you might suspect and it happens with all kinds of sentences, even grammatically correct ones. Garden-path sentences, for example “the old men the boat”, are specifically crafted to demonstrate this and they essentially are doing the same thing as using ‘r’ and ‘u’ as a substitute for words: they violate the Gricean maxim of manner and that one relies a lot on expectation.
However, one could make a case that in some situations, like a “how r u” via text, the replacement is ubiquitous and somewhat expected and doesn’t cause any impediment to understanding. It’s definitely a hinderance when a more verbose communication is expected. Might be a neat subject for a phonetic study, honestly.
There was a song from Pearl Jam called Jeremy that had this line:
<span style="color:#323232;">Daddy didn't give affection, no
</span><span style="color:#323232;">And the boy was something that mommy wouldn't wear
</span><span style="color:#323232;">King Jeremy the wicked
</span><span style="color:#323232;">Oh, ruled his world
</span>
What they meant is that the mother neglected him because she didn’t want to be seen in public with him.
Honestly, I have received stuff in 2 days even without having Prime. They tell you it’s taking a week, but the package arrives much earlier. I don’t really order that much tho, so maybe I just got lucky.
To this day, I have never bought something because of an ad. I get the concept of letting people know your product exists, but I know Raid Shadow Legends exists already and I am not interested, so fuck off.