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I get the opposite feeling: Whenever I look at code I wrote say 10 years ago, I go: "Blimey! I would never, EVER do it that way now. Whatever was I thinking? That's not code, that's black magic!"
Anything that is unrelated to elephants is irrelephant Anonymous - The problem with quotes on the internet is that you can never tell if they're genuine Winston Churchill, 1944 - Never argue with a fool. Onlookers may not be able to tell the difference. Mark Twain
The thing that most makes me go "Wow" is how my GPS device can plan a route through real-world roads and take into account all the traffic laws, such as where you're not allowed to turn left, and such. Amazing!
I hear ya, staring at greet CRT all day is stressful. Now a day, I can't even code on 2 27" LCD. I must have a 55" 4K and set the font size to 150% or 12Pts font. Still going home with blurry vision every day.
Pretty much anything.
Wow, how can a computer compute?
Wow, how can a (cell) phone, or computer for that matter, connect to any other device anywhere in the world in milliseconds?
Wow, how can we build big ass skyscrapers with all kinds of fancy architecture?
Wow, how could the early civilizations do pretty much the same without all our fancy technology?
Wow, how can Google search through millions of websites for some random string in milliseconds.
Wow, you already mentioned Shazam, who does the same but with music, WOW!
I know it's all perfectly logical.
Some physics, some chemistry, some math...
Cryptography - I've never had the math to understand it.
Flight control for aircraft - I was involved with one project and it's scary stuff. Lots of complex, high-rate data acquisition coupled with complicated math. In that software, if there was a bug that let the aircraft go unstable, the pilot died 2-3 seconds later.
We actually built a software emulator of the flight control system for the purpose of validating the system's design. Our emulator could be 'flown' in ways that a normal flight test would not allow. Still scary stuff (if we missed something ), but a step removed from direct responsibility for the pilot's safety.
As I recall we only found two or three minor design errors, none of which had flight safety concerns.