dooooh!
Please ignore my comments on steel for Gina's tower. I wrote it late in the night and was going on memory, as my reference material was at work. {8-[
Of course, Beryllium is waaaay better than steel for building Gina's tower. Be Modulus is a third again higher and density is less than a quarter of steel. Is it too late? or will spike spend his entire evening reading about how dumb his comment was from dozens of extropians? {8^D spike