In connection with the recent suggestion by Tsytovich et al. that opac
ity in the solar core could be overestimated, we consider the followin
g questions: (i) What would a 10% opacity reduction imply for the sola
r neutrino puzzle? (ii) Is there any hope of solving the solar neutrin
o puzzle by changing opacity? (iii) Is a 10% opacity reduction testabl
e with helioseismological data? (C) 1997 Elsevier Science B.V.