Yeah, I've had similar experiences to yours, nordic ski racing on a team all throughout college. We'd all get coughs the first few cold days, but that was it. We would avoid doing interval workouts if it was below 0° F though.
Agreed. I would wager that in any sport where technique is important/difficult (swimming, nordic skiing, and to a lesser extent running), efficiency will improve over time, even for elite athletes.
The previous poster was saying that in response to storming the US Capitol building, Twitter can either: 1) ignore it, 2) respond to this specific instance (right wing extremism), or 3) respond to all inappropriate uses of their platform (which would include left wing extremism).
I've never heard "quiet" used to describe a high signal to noise ratio before. I can't decide whether the tech writer thinks "noise" means "sound" in this context, or just came up with a clever title.