could someone PLEASE HELP ME by paraphrasing the followin:
While theSears Tower is arguably the greatest achievement in skyscraper engineering so far, it's unlikely that architects and engineers have abandoned the quest for the world's tallest building: Just how high can a building go? Structural engineer William LeMessurier has designed a skyscrapper nearly one-half mile high, twice as tall as the Sears Tower. And architect Robert Sobel claims that existing technology could produce a 500-story building." From Ron Bachman, "Reaching for the Sky." Dial (May 1990): 15.

Question

could someone PLEASE HELP ME by paraphrasing the followin:
While theSears Tower is arguably the greatest achievement in skyscraper engineering so far, it's unlikely that architects and engineers have abandoned the quest for the world's tallest building: Just how high can a building go? Structural engineer William LeMessurier has designed a skyscrapper nearly one-half mile high, twice as tall as the Sears Tower. And architect Robert Sobel claims that existing technology could produce a 500-story building." From Ron Bachman, "Reaching for the Sky." Dial (May 1990): 15.