In this paper we update a prediction of the solar activity for cycle 2
3 on the basis of a general framework derived from simple dynamo consi
derations. We estimate an expected maximum smoothed International Suns
pot Number of 143+/-30, or a smoothed 2800 MHz radio flux (F10.7) of 1
90+/-30 x 10(-22) Watts/m(2)/Hz. These values should allow us to test
the reliability of the various forecasting methods.