In the latest Time magazine’s “2013 Time 100” presenting the annual list of the 100 most influential people in the world, former governor of Alaska, Salah Palin endorsed Senator Rand Paul for Kentucky as:
“He is a voice of reason awakening the public to what must be done to restore our prosperity and preserve the blessings of liberty for future generations. His brand of libertarian-leaning conservatism attracts young voters, and recently he inspired the nation with his Capraesque filibuster demanding basic answers about our use of drones. - -. There’s more where that came from for this bold Senator with 20/20 vision willing to take a stand for liberty.”
I surmise ‘the bold Senator with 20/20 vision’ here means the senator with the common sense and sense of balance, but I’m not sure.
Is it common to use ‘20/20 vision’ metaphorically for anything like this other than the measurement of visual acuity?