The taxi wouldn’t be there if it weren’t giving people rides.
ME IN A TAXI + SOME OTHER GUY IN HIS CAR = 2 CARS
ME IN MY CAR + SOME OTHER GUY IN THE TAXI = 2 CARS
ME IN MY CAR + SOME OTHER GUY IN HIS CAR = 2 CARS
One might postulate
ME IN MY CAR + SOME OTHER GUY IN HIS CAR
+ EMPTY TAXI DRIVING AROUND FOR NO REASON = 3 CARS
but that’s not a thing.
