Depends what you mean by “familiar”. I’d imagine anyone reading the essay can do algebra, but that they’re still likely to be more comfortable when presented with specific numbers. People are weird like that—we can learn general principles from examples more easily than from having the general principles explained to us explicitly.
we are talking about the mathematics of causality. I would expect people to be familiar with free variables and algebra.
I for one would find explicit algebraic expessions much clearer than a bunch of meaningless numbers.
Depends what you mean by “familiar”. I’d imagine anyone reading the essay can do algebra, but that they’re still likely to be more comfortable when presented with specific numbers. People are weird like that—we can learn general principles from examples more easily than from having the general principles explained to us explicitly.
Exceptions abound, obviously.