@deepthought said
Electromagnetic induction is no more or less "fundamental" than time dilation effects in general relativity.
Then you see your bringing up the equivalence principal didn't prove me wrong at all, right? All that time wasted on an irrelevancy.
You should not be skeptical that Greene was talking about time dilation. He described it perfectly and if you understood Einstein's field equations you would know time dilation is the foundation of GR.
You should be skeptical of people claiming they know what a black hole is. I watched Nova last night and the assertion was made that it is an infinitesimally small point in space and it is a hole in the fabric of space. The narrator also said nobody knows what is in a black hole because it is a mystery. Notice the contradiction.
How does anyone know a black hole is not a neutron star with too much gravity for light to escape? Why did the narrator claim it was a hole? Surely she wasn't being literal, was she? They even brought up the prison in India called the black hole. Were they entertaining the possibility they were named after a prison? I can't think of any other reason they would bring it up.
I seems things are often taken too literally in science. A black hole is now an actual hole in space? Is that how god plays golf? LOL!
If you are going to claim someone is using terms too loosely and misleading people there are plenty of people that deserve it, but not Greene. There is nothing inaccurate about what he said except the word "mostly". If there is another reason he should have stated it because I cannot think of one.
There was another contradiction in last night's Nova. She implied gravity is not a force. Gravity is commonly called the "weak force" by physicists. Time dilation from matter causes that force. That is why Greene brought up the proper time at his head being different than the proper time at his feet. That is the unquestionable perfect description of time dilation.
Nobody is saying the bending of space. Time is included for a reason. You cannot have the bending of space without time dilation from matter. THAT IS IMPOSSIBLE. Hence the term spacetime.
Time dilation and the bending of spacetime is the same thing.