Why use "ultra-strong carbon" when you can use MEGA-ultra strong carbon instead? Fools.
"... and to have solar-powered lifters carry 100 tonnes of cargo into space once a week, 50 times a year."
I guess they have taken into account some dramatic acceleration in the earth's solar orbit due to the effects of this space elevator (THE space elevator- the one that will be built real soon... that one), which will force us to change our calander system to only 50 weeks a year, instead of the absurd 52-week pattern that we currently follow.
It's good to plan ahead like that.
Your humor is instructive.
Can't have it going 24/7/525600, you know.
No, no, the solar-powered lifters' union will insist on a two week vacation.