Absolutely. It really confused me when I first encountered objects in Turbo Pascal 5.5 in 1989. Until then I had been programming soft real time systems where

Absolutely. It really confused me when I first encountered objects in Turbo Pascal 5.5 in 1989. Until then I had been programming soft real time systems where messages really were messages. The sender put the message in the queue and the recipient did something with it and possibly sent a message back. It took me days of banging my head against the wall to understand that in the object world messages were actually synchronous message calls and that the sender couldn't do anything until the object method returned.