  If a person looks at WHITE paper through BLUE glasses, the paper will become
BLUE in the eye of the person. Likewise, in the current study of big data which
play the same role as the white paper being looked at, various statistical
methods just serve as the blue glasses. That is, results obtained from big data
often depend on the statistical methods in use, which may often defy reality.
Here I suggest using physical ideas and methods to overcome this problem to the
greatest extent. This suggestion is helpful to development and application of
big data.
