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@sj_zero
Wow! That's an incredibly thorough explanation. Thanks for putting in the effort. I hope you've put it up as a blog piece or somewhere less ephemeral than the verse, as it's a valuable contribution to the debate on the logistics of passenger rail.

Obviously I'm going to need to think about it deeply and carefully before responding, because you've covered a lot of ground there (pun intended).

@fgraver @AccordionBruce @tbaldauf