It is kind of hard to explain but the first time I learned about digital/analog conversion and wired up a very simple speaker and made it play any note I wanted by simply tweaking the processor’s clock, the magic left me. Before then I couldn’t even fathom how that worked, then it was like “that’s it?”

Just an overwhelming sense of disappointment in how much sense it made that it worked that way and not a myriad of more spectacular ways I’d imagined when I was a kid taking apart ancient IBM color monitors for fun