As a loose analogy, could you say: People think that your calculator can only show 12 significant figures because it's only got a small screen. But, the actual

As a loose analogy, could you say: People think that your calculator can only show 12 significant figures because it's only got a small screen. But, the actually numbers it works with are also limited, and you can get even weirder things happening due to its internal representation being inexact. That's only an analogy for the sort of confusion people have, not an analogy for how quantum physics actually works.