I mean, some care about %accuracy etc. as when a dollar store DVM says "6.000 volts" and ya just know/can verify: the sucker might be +/- 5% or worse. Doesn't matter much of the time, but when you're setting a REF-point for multiple voltages in some device.. It Do. matter.

[rant 101 on]
We're surrounded by just such (insensibility?) to differentiate when/where you need: that '17-place log table', or maybe "ten-nines" purity? to meet 'Spectroscopically-pure' chem-specs' or then just .."the gauge says a quarter-tank left"; it is not 25.000% left, 'cause that would be $stupid-specs
[/all futile rants]
;^>

(The number of digits on one of those space-objects soft-landings), oft 5 or 6 digits just in display: was worth beholding, however lost was that accomplishment on most viewers.
But moi grokked :-)

---

Ad recalled from tykehood: (radio--we had that then)

Ivory Snow(soap). It floats, ninety-nine-and 44/100ths percent Pure!
See: misinformation was spawned by The Business Class, mass-harbingers of all sloppy un-Truthiness in the galaxy, since.