If I say I've got two versions of Word - that old one from 1982 that's perfect, with zero defects; or the new one that's got all this cool new stuff, but there might be a few bugs in it - people always want the new one. But I wouldn't want them to operate a plane I was on with software that happened to be the latest greatest release!
Nathan MyhrvoldSuppose that 'Unsolved Mysteries' called you with news of a long-lost identical twin. Would that suddenly make you less of a person, less of an individual? It is hard to see how. So, why would a clone be different? Your clone would be raised in a different era by different people - like the lost identical twin, only younger than you.
Nathan MyhrvoldIn the early days of the software industry, people cared about copyright and didn't give a damn about patents - they copied each other willy-nilly.
Nathan Myhrvold