being a civil engineer - i agree in principle with the fact that yes it will be much quicker to build it with prefabricated materials but 90 days??? ill believe it when i see it.... what are they going to have a 100,000 workers running around trying to piece it all together?? will cause chaos and will likely result in serious setbacks...
24/7, shift after shift, construction doesn't stop for a minute, that's one big plus. China has good record for these types of projects, given that any of them haven't been as big as this with the exception of the AP1000 power plants. Given that the plants won't be build in 90 days but they are build lot faster then they are in US/EU.