Reaction speed isn't to do with thinking, it's when you move your racket to the BALL!
That's why he doesn't strike it flat as well as he used to be because he's a step slower when he tries to take the ball early.
That's nothing to do with the mind.
It's fun seeing people laughing at themselves.
"It's when you move your racket to the ball!!!".
Before your arm can move anywhere, you brain has to send signals to it first. All reactions involve thinking before the action takes place, which is why it's stupid to say Federer's reaction time is slower unless you want to argue that's he's retarded or can't think as fast as he used to.
Besides, Federer has been playing tennis for ages, his muscle memory must be incredible, which means less thinking about the motion and faster reactions.
You would have been better off arguing that Federer is more impatient due to his opponents fustrating him with their defense and that affects the timing of his shots; he wants to end the point too quickly and ends up mishitting the ball. That makes a lot more sense than your drivel about reaction speed.
Tennis professionals who are PROMOTING THE SPORT, yeah.
Truth can be present in the promotion of any sport. Glad to see the past greats giving credit where it's due.