[Beck]

I agree. Its not as unlikely as it may sound. As technology gets more and more complex and automated, the fewer people that will know how it operates and still fewer people who will know how to produce the item in question. Look at today and the number of people totally perplexed as to how to change the blinking 12:00am on their VCRs. This gap will only widen in the future. As software reaches the point of software designing software which designs components, etc., it even conceivable that a computer virus could wipe out knowledge of a tech as no human will have been involved in the process, not of its existence but of how it works.