[aerohead]

* Neutral atoms will stream in regardless of whether or not the Heliosphere is there or not.
* Same for intersteller dust.
* Even during solar senescence, there's still a solar wind, albeit weaker, but strong enough to form a barrier to weak intersteller plasma.
* Relativistic velocity Galactic atomic nuclei will be influenced even by a weak solar wind.
* Cosmic particles arriving at Earth's magnetospheric boundary would increase in a weakened solar wind.
* Cosmic particles already affected by the Interplanetary Magnetic Field ( Galactimagnetosphere ?) would not be affected by a change in the solar wind.
* We're routinely bombarded by cosmic particles and they may have played a crucial role in biochemistry and the beginning of life.
* Heck, Earth's hit by thousands of fast radio bursts every day and nobody knows a thing about them. Maybe they 'boom-boxed' our RNA and DNA into existence!
* There's no correlation yet, to ascertain any Heliospheric / cloud condensation nuclei / cloud cover / albedo / solar insolation mechanism.
* There'd be more atmospheric nitrogen ions.
* As of 1989, the Sun's magnetic activity had increased by 2.3X, since 1901.