Why can't indices be calculated precisely, to as many decimals as you want, once you have defined the game rules, the counting system, flooring or rounding, to exact card or full-deck, etc?
It's just that one may have to, potentially, learn a new index table for alot of different games and a different index number for each play. No reason, if one chooses, why one can't learn index numbers to 4 decimals lol. It's just convenient to maybe call an exact 0.2 index departure "0".
They are only rounded to whole integers in the first place because they know the exact underlying departure point.
Why does the insurance index change for 1D or 8D from 1.4 to 3.1 if using Hi-Lo? Why does it change again from 1.7 to 3.4 if you use Halves? In no case does the pen matter since whenever the Index is reached, no matter when it occurs or how many decks remain, you make the departure.
But, yeah, I think when I looked up oxymoron in the dictionary the definition was govt intelligence