Introduction

1. Basic problems of the existing models of solar flares

2. The notion of reconnection is questionable

3. Is the Maxwellian view of currents and plasma correct?

A TGD inspired model for solar flares

1. The motivating finding

2. Basic problems of the existing models of solar flares

3. A TGD based view of the polarity reversal of the solar magnetic field

4. Why the electric currents that should accompany magnetic substorms in the magnetotail are missing?

Possible applications to the polarity reversal of Earth's magnetic field and to biology

1. Do the reversals of the Earth's magnetic field induce evolutionary leaps?

2. Could geomagnetic reversals and excursions relate to extinctions and collapses of civilizations?

3. Tukdam and TGD