Oh, yeah...
http://www.ngdc.noaa.gov/stp/SOLAR/FLUX/flux.html
Check that out too, and you can see that this is a 2800 mhz radio flux. If you examine this carefully, you can see we are actually bottoming out even now.
I have doubts that the sun will just “Stop” acting like it has for the past recorded history. Further if you examine sunspot numbers, you will see that the curves and peaks and valleys track year by year in a similar fashion.
We only have radio data from the 1950s or so, but sun spot data goes back a few hundred years now.
Our sun is a variable star that changes it’s radio intensity every 11 years, and IF you were an observer a good distance from the sun, you would see it’s light intensity vary slightly over that time period as well (as sun spots develop and fade). This is probably very difficult to measure (and I sure can’t tell the difference up close haha), but I’m sure that since we can currently measure the variability of stars’ light over time we could measure the sun at a distance.
My point is that “variable stars” - which we now tend to believe includes near every star out there (for reasons too complex to go into at this point) change constantly, some on a short time scale, others on a very long time scale.
The fact is, we simply don’t know EVERYTHING there is to know about stars, and the sun being the closest to us has not give up all it’s secrets. I am not sure I want to see some of them up close and personal either!
That’s all cool - but if the sun doesn’t start heating up soon, so will we.
This makes people ask questions nobody wants to answer.