In a Bishop Hill discussion about some very dodgy stats methods the mainstream cli-sci community is using, this nice little factoid popped up from commenter ‘dearieme':
The Jeffreys Prior: fine, but one must be careful not to follow Sir Harold in all his science.
From Wikipedia: Jeffreys was a strong opponent of continental drift. For him, continental drift was “out of the question” because no force even remotely strong enough to move the continents across the Earth’s surface was evident.
Which put me in mind of those solar scientists such as Leif Svalgaard who say that planetary effects on the Sun are “out of the question because no force from the planets even remotely strong enough to affect the Sun is evident”.
Which led me to wonder if consideration of the forces which move continents around might throw up any ideas about the planetary-solar connection. What I discovered on Wikipedia’s plate tectonics page is that the question of what the forces are, and how strong they are relative to each other is very much an open question and a hot subject of ongoing debate.