Lu,
Sorry, perhaps I misunderstood what you wrote.
You said:
This is not rocket science. In fact it is not science at all.
Let us assume you can tether the elevator at one end to the space station and the other end to the earth the tether would have to be about 22,000 miles long as to do so the space station must be in a geosynchronous orbit. The space station is around 200 miles up so the station and the point of attachment on the earth would be traveling at different speeds.
I interpreted this as you asssuming that Clark had suggested that the elevator could be attached to a space station in 200 mile orbit, and hence criticizing him for not realising that the top end would have to be in geosynchronous orbit. Apologies if this was not the intention.