This isn’t a “get off my lawn you kids!” story. If anything, it’s the opposite.
During my early days in the computer industry we lived in a severely resource constrained world.
The old days: scarcity
I learned to program in 1978 on a TRS-80 – a computer with a 1.77MHz 8 bit CPU and 4KB of RAM. Just imagine trying to do anything in 4KB of RAM today. Imagine trying to get anything done with less than 2 million instructions per second. And for persistent storage… it wasn’t just that it was small and slow, it was a cassette tape and you were lucky if you could even read back your program at all.