From R. VAN SPAANDONK
In regard to your article ‘Energy of ‘nothing’ upsets cosmology’ (New
Scientist, Science, 31 August), I was troubled by what seems to me to be
an anomaly. On the one hand, we have the zero point field supposedly causing
an excess of gravity, while on the other hand we have scientists looking
for ‘cold dark matter’ to explain the gravity we already have. My question
is, why can’t the one be the explanation for the other? Why can’t the cold
dark matter be virtual particles? Could someone please explain?
R. van Spaandonk Bacchus Marsh, Victoria Australia
