Which ultimately means that 'strength' is clearly about more than muscle.
And here's where we've seen the beautiful change in the argument that you're so famous for. As I said, it's a key tactic David uses: he changes the meaning of his ambiguous statements as the argument wears on, then makes a suppressed correlative by saying that that was not he was arguing about and that you can't comprehend his argument since he's changed its meaning.
To go back to David's argument about the Proletariat, I'll play a hypothetical. How do you think the results of an uprising by the North Korean people would look if they decided to overthrow the Kim family and the military? I say that because the result is a demonstration of what would happen if the Proletariat tried overthrow the Party.
I'll explain my position; in tactical terms, the Party will always win because they hold all the cards. The weapons, the resources (what few there are), and the military. The gist is that the Party has all the assets. You need assets to win a revolution. A large mass of motivated mooks is still uncoordinated and unarmed.
Basically, you have a large globular mass of people that isn't flexible, mission-capable, or adaptable. And as mentioned, they're fighting an opponent with every asset that is exploitable. Are you looking at this in economic terms? Or tactical? Or strategic?
Also, you're taking a single conversation held within the confines of Room 101 with a tortured captive and a more or less omniscient member of the inner party. The tortured captive is being defiant for the sake of being defiant, and O'Brien is manipulating and screwing with Winston's mind. And you're holding this conversation as some kind of confirmed truth. You've changed the context of statements to mean something that they don't actually mean. As I said, one subjective conversation in the context of torture is itself an authorial mind-screw. Orwell intended 1984 to show what happens when political extremism and totalitarianism takes hold and changes the very reality and history to whatever they want it to be. They have to have all the power to be able to do that. There's no power to be had anywhere else.