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(PhysOrg.com) -- "Smaller, faster, cheaper" is Silicon Valley's mantra for progress. But as critical components shrink to near atomic dimensions, it’s becoming much more difficult for their developers to understand exactly how they operate before committing to product design and manufacturing.

A friend of mine has long held that a vaccination his son received as an infant triggered his child’s autism. He clings to this belief despite a string of scientific studies that show no link between autism and vaccines. When the original paper on such a link was recently discredited as a fraud, my friend’s reaction was that it will now be more difficult to persuade people of the dangers of vaccination.