I had a similar realization when studying undergrad linguistics.
One of the classes had us read Chomsky’s “Remarks on Nominalization” paper. The overwhelming sense I got from it was that the author did not understand X-Bar theory, despite knowing that Chomsky was the one who came up with it (and not realizing at the time that this paper was essentially Chomsky’s first paper on the subject).
I will also say that it is a credit to his writing that the paper still holds up pretty well; even if it spends an entire section coming up with bad answers to what was literally a syntax 201 homework assignment.




Waterproofing hasn’t been relevant to batteries since they were made internal.
I just checked, and a replacement battery for my 2024 HMD Skyline goes for $15.62 plus another $3.25 for the consumable adhesive pad and whatever shipping ends up being [0]. In practice, you might also need to buy tools, which can further drive up the cost.
Finding that source took a bit of knowledge. If you go by what HMD tells it’s US users, you would look on iFixit, which would be $30 for an entire kit, which includes the battery, adhesive, and tools (Just the battery and adhesive would run you about $28).
[0] https://gsmnet.com/products/hmd-skyline-battery-hba4633aa-service-pack-hq71101001dt2?srsltid=AfmBOor1-PdyDMT6TX5X--CtmlTm60kOFti1fr5gGnjsOMCX3pOcKZlw
https://gsmnet.com/products/hmd-skyline-battery-adhesive-service-pack-hq25804001fj0?_pos=1&_sid=1311a3ad0&_ss=r
[1] https://www.ifixit.com/Parts/HMD_Skyline