I think it's because it's trite and repetitive and you've done it for 5 different languages and way too many years. You felt some emotion when you first learned

I think it's because it's trite and repetitive and you've done it for 5 different languages and way too many years. You felt some emotion when you first learned a language and built something cool with it. You don't feel anything nowadays implementing the 200th service. ~20 years ago I knew most PHP function by heart. Today I need to keep the rust documentation open. I had roughly the same internet access I have now. What you point out with the GPS likely happened because the negative emotion of taking the wrong turn built a memory for you.