BuzzSkyline writes: Physicists have found that there is an ultimate limit to the speed of calculations, regardless of any improvements in technology. According to the researchers who found the computation limit, the bound "poses an absolute law of nature, just like the speed of light." While many experts expect technological limits to kick in eventually, engineers always seems to find ways around such roadblocks. If the physicists are right, though, no technology could ever beat the ultimate limit they've calculated. At the current Moore's Law pace, computational speeds will hit the wall in 75 years. A paper describing the analysis, which relies on thermodynamics, quantum mechanics and information theory, appeared in a recent issue of Physical Review Letters.
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