well the carpenters get better and better at carpentry and raise their prices each year because there isn't any significant changes in the technology of carpentry at least once a decade making carpentry skills obsolete in the eyes of the marketplace.
> because there isn't any significant changes in the technology of carpentry at least once a decade making carpentry skills obsolete in the eyes of the marketplace
That's a bit extreme I think. Tech changes yes. But let's say you were a a C#/C++/Java/Python/Ruby dev 10 years ago - how bad has it all changed in the last 10 years that your entire experience is somehow nullified? I'm not denying that some higher-ups like to adopt this line of thinking to justify hiring cheap juniors. Self respecting engineering companies don't really buy this bull.
It’s funny that your list spans languages from about 20 to all of 30 years old (and less than that if we start counting from the mainstream adoption). In a typical 40 year career, many people would think of these as hot new technology - kind of like working for 10 years today and suddenly Rust comes along or something.
