Right - but the newsspeak does not inhibit the truth. Creating mechanical life is purely nonsense, in the same way a boy who has been given tinkertoys can build a car like his dad's. He may believe he can, he may brag he can, but he doesn't understand the first damn thing about it.
The purpose of Newspeak was not necessarily to inhibit the truth, but to distort the language (and thought behind it) to sidestep the truth and substitute the State's "truth" in its place. The notion of "thought crimes" is a part of that. If the Proles spoke outside of the Newspeak, it was evidence of thinking outside of the box the State constructed, making convictions for Thought Crimes much easier.
Your definitions, and mine, don't change. But people who have not lived the lives we have would not have that certainty, most likely. Getting old has it's advantages, I suppose.