| > This picture shows the event horizon as having constant position in a free-falling frame. But the event horizon accelerates in all nearby inertial frames The line represents the horizon at a single moment in the life of frame X, during which it has a specific position relative to X and is not accelerating relative to X. > If you have a test particle moving with constant acceleration, ... The test particles are defined as freely falling. The frame X is defined as inertial. No free particle can accelerate in an inertial frame (at least not measurably), including in relativity. Check out Taylor and Wheeler's quote at the bottom of the blog post: "Keys, coins, and coffee cups continue to move in straight lines with constant speed in such a local free-float frame." According to you, those things would not move at constant speed; rather they'd be "moving with constant acceleration". > Well duh. There are no inertial frames that cross the horizon. This again disagrees with Taylor and Wheeler's quote. They are clear that not only can an inertial frame cross a horizon, but also that frame is "a free-float frame like any other". I didn't respond to everything you said because it hinges on the same disagreement. Before we could get further in the discussion you would need to accept Taylor and Wheeler there, or show how I'm misunderstanding the conflict between what you said and their quote that seems to explicitly disagree with you. |