3 ms·
A tunnel built in 1900 looks nothing like a tunnel built in 2017. Strength, longevity, safety systems, dimensions, computer controls, power etc etc are all mass
by pinot 10y ago
A tunnel built in 1900 looks nothing like a tunnel built in 2017. Strength, longevity, safety systems, dimensions, computer controls, power etc etc are all massively upgraded. It's not a fair comparison.
That's like saying this electric car [1] from the 1902 would be far cheaper to build than a Telsa in 2017, therefore Teslas are over priced.
[1] http://www.intechopen.com/source/html/41483/media/f4.jpg http://www.intechopen.com/source/html/41483/media/f4.jpg
- pcurve 10y agoHere's a subway line in South Korea that was built for $100 million / km. https://www.youtube.com/watch?v=bE87IPJqW4M https://www.youtube.com/watch?v=bE87IPJqW4M Granted, it's not the most fair comparison, but the cost of subway construction in NY is abomination. https://pedestrianobservations.wordpress.com/2011/05/16/us-rail-construction-costs/ https://pedestrianobservations.wordpress.com/2011/05/16/us-r...
- clarkmoody 10y agoYes, but he's noting that a century of technological advancement has not been able to keep the costs to less than a 22x increase. It must be something other than the technology.