[Steve Van Doorn]

said, " Most likely this was an electrical discharge from another planetary body whose plasma envelope impinged upon that of Earth"

Wait. you're not talking about the bubble. you're talking about the Younger Dryas.

I believe our sun goes through cycles that are recognized as the Dansgaard–Oeschger 1500 year cycle more noticeable during glaciation (last one was Roman Warming period to the Maunder Minimum.) The Heinrich cycle which is a 6,000 year cycle last even we recognize as the Noah Event likely associated with the Burckle Crater this huge asteroid hit the Indian Ocean. But every other Heinrich cycle seems to be larger which the last was the Younger Dryas.

[Melian]