[who_would_fardels_bear]

Are those quotes from the article or the paper? The paper doesnt make grand points about contradictions between the different physics theories. It just works out logically and mathematically that ctls dont necessarily lead to paradoxes.

I remember reading an article a while back where a physicist was able to set up a non-paradoxical billiard problem involving balls coming back from the future. Not gonna help with the grandpa paradox, but a step in that direction.

[mlo]

"Are those quotes from the article or the paper?"

I don't know, but they are quotes from the author. That tells me enough.