Startup idea: CNN smartphone app to count the number of hands raised in meetings/lectures/conventions & speed up: http://www.gwern.net/Statistical%20notes#proposal-hand-counting-mobile-app-for-more-fluid-group-discussions …
Oh, that's too bad. Undermines attempt to use them very practically; although I mostly had in mind a general 'roughly how far am I from X in reality, rather than as the crow flies?' Any specific trip you'd consult a map at a specific time, after all.
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"In reality"—unfortunately, you still need specific times. In other posts on the site, there is some discussion that e.g. peak-only service makes for dramatically different isochrones during peak vs. midday. Roads skew in the opposite direction and get congested in the peak.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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