Some interesting possibilities listed there. I found this one particularly questionable, though:<p>> The number of jobs created by new technologies is likely to surpass those destroyed during the next 20 years, judging from past episodes.<p>That seems to assume linear rather than exponential growth, or at least assumes that the cumulative distribution function of job difficulty follows a smooth and predictable curve.<p>Moreover, it misses the point that the jobs created will not necessarily be appropriate for the people (or in the countries) where the jobs are destroyed. Even if they were, there's a lot of inertia in the job-seeking system; so, for example, if the average person has to change jobs every 6 months, that's very different from changing every 4 years.