But they use binaries? Okay.
Okay with pi too.
And speed of light? in kilometers/second or things like this? They can have different ways of measuring time and space. And numbers. We use 1,2,3,4,5,6,7,8,9,0. And if they use 1,2,3,4,5,6,7,8,9,A,B,C,0,X,Y,Z? The number pi would be represented differently.