my idea: https://news.ycombinator.com/item?id=6046134
@cma's idea: https://news.ycombinator.com/item?id=6046081
...
While we're throwing out our Hyperloop hypotheses, I posted this a while back: https://news.ycombinator.com/item?id=4806458
my idea: https://news.ycombinator.com/item?id=6046134
@cma's idea: https://news.ycombinator.com/item?id=6046081
...