Itβs a day dedicated to honor all the saints
In binary, “01-11” could be interpreted as two separate numbers: “01” and “11”. In binary, or 11-01.
“01” converts to 1 in decimal, “11” converts to 3 in decimal.
So if “01-11” in binary is meant to represent two separate numbers, then it could be read as “1-3” in decimal.