150 years is not an estimate, the figure comes from this event: “The solar storm of 1859, also known as the Carrington Event, was a powerful geomagnetic solar storm in 1859 during solar cycle 10. A solar coronal mass ejection hit Earth’s magnetosphere and induced one of the largest geomagnetic storms on record. The associated “white light flare” in the solar photosphere was observed and recorded by English astronomers Richard C. Carrington and Richard Hodgson.”
So how in the hell does that establish a 150 year cycle? NOT AT ALL!!!
Just saying “something happened ONCE, and we “think” it is due to happen any time” does not establish a cycle.
There may be other data, but you have not presented it. In fact, to establish a “cycle” one needs SEVERAL Data points. High Points, Low Points, and Zero crossing points, or mid points. Then, and only then, can one establish a cycle, and what if it is a decaying cycle??? So much is left out…
"ROGUE ELECTRICIAN" Hoping to be around to re-energize the New World.....
Cogito, ergo armatus sum