Comment by gerdesj

-49?

Mind you, 0 needs inventing or what happens between 1 and -1 ... oh and -1 needs defining too, whatever that nonsense is!

People haven't somehow magically become cleverer over the recent millennia. We just have some fancier tools these days. I'm sure if you gave a few Romans enough wine and the starting point of "Quid CDI significat?" then you would probably get a decent discussion.