Original sentence: ) However, because the loop runs at constant speed, joining and leaving the loop may be somewhat challenging, and the strength of the loop is lower than a conventional tapered design, reducing the maximum payload that can be carried without snapping the cable.By exponentially increasing the thickness of the cable from the ground a very quick buildup of a new elevator may be performed (it helps that no active climbers are needed, and power is applied mechanically.If the cable provides a useful tensile strength of about 62.5 Gpa or above, then it turns out that a constant width cable can reach beyond Geosynchronous orbit without breaking under its own weight.Other structures such as mechanically-linked multiple looped designs hanging off of a central exponential tether might also be practical, and would seem to avoid the laser power beaming; this design has higher capacity than a single loop, but still requires perhaps twice as much tether material.The far end can then be turned around and passed back down to the earth forming a constant width loop.The two sides of the loop are naturally kept apart by coriolis forces due to the rotation of the earth and the cable.These are far less well developed, and will be mentioned here only in passing
Edited sentence: A disadvantage of this design is that the cable would be moving at a constant speed, making getting on and off the elevator challenging, and making it impossible to accelerate to reach either destination quicker.An alternative design envisions using a looped cable of constant width, which would be mechanically revolved, as a conveyor belt.No climbers would be needed as cargo pods would be attached to the cable directly.This design would require a cable with a tensile strength of about 62.5 Gpa or more