I admit I'm having a visceral reaction to this analogy. A bicycle is a sophisticated product whose form is almost pure function. Despite being apparenty simple, almost no regular person can draw even a reasonable facsimile of a bicycle from memory ( https://www.youtube.com/watch?v=L0_vXZ-3LFU ). Which is to say, for actually designing a functioning bicycle, the devil is in the details, and details are exactly where vibecoded apps fall down. Our lower bound for this analogy should instead be the downhill go-kart cobbled together from scrap wood you found in the dumpster.