4 ms·The concepts "personal" and "confined to bulky, expensive tracks" don't seem terribly compatible.by euroderf 4y agoThe concepts "personal" and "confined to bulky, expensive tracks" don't seem terribly compatible.junon 4y agoAs opposed to "bulky, expensive roads"?euroderf 4y ago"bulky, expensive, already-built roads" ?junon 4y agoAh yes, because we never build new roads.