The mantis shrimps, found on the Great Barrier Reef in Australia, have the most complex vision systems known to science, researchers at Bristol University have found.
It may even be that the restrictions of a primitive language are a barrier to creating complex thoughts.
一种原始语言的局限性，可能正是其创造复杂思想的障碍。
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Of course, the first two factors are nothing new -- graphical frameworks are complex by nature and adding business functionality to a GUI application has always posed a barrier to testing.