The other issue is whether the passenger did anything wrong by tweeting.
No, he did not. The flight agent was being a dick by asking him to leave... if the passenger really doubted that the agent had the authority to do ask that question, then he should have immediately asked to speak to that agent's manager or supervisor instead of complying with the request.
It very easily could have been a huge PR problem if they had called the police... but in all likelihood, he still wouldn't be allowed on the plane before they arrived, and by then the plane could have already left. Oh, and his luggage would be flying off without him.
Sounds like a good recipe for a migraine from bowels of hell.
...once he's allowed past the gate, he's allowed.
And once he's been asked to leave, he is trespassing if he does not peacefully comply. Companies can refuse service to anyone for practically any reason they want... presumably,. however, if the reason is not actually a good one, the bad publicity that could easily follow will tend to keep companies from being entirely *too* arbitrary about such reasons.
How do you get at the notion that no singularities necessarily means that there are no black holes?
Can't a volume of space be sufficiently bent by gravity so as to not allow light to escape from it, without there being a singularity at the center?
The paradox arises when this system falls into a black hole causing the information to devolve into a single state.
Or... maybe it doesn't devolve into a single state at all. We can't actually see what goes on inside of black hole... but if our assumptions about what actually happens appear to create a paradox, then maybe it's our assumptions aren't valid, rather than the original basic concept of what a black hole supposedly is. I believe that the concept that black holes are necessarily singularities may be flawed. Space is so distorted by gravity in their vicinity that straight lines which intersect their event horizon never exit it, but I do not think that means that all of a black hole's mass is necessarily at its center, or even necessarily collapsing inexorably towards its center. Its center is just its center of mass.
And yeah, I know that astrophysicists with a vastly more qualifications than I have came up with these ideas, but in the end, an argument from authority does not make one actually right.