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Re:Mercury found to be tectonically active by mafribe on Tuesday September 27, 2016 @03:43PM (#12592461)
Is your use of "armchair logic" a criticism of the theory that Io is volcanic largely because of tidal energy?

I often wonder about the results of planetary geology. Even the interior of the earth is still not very well understood, and most of the methods we use to understand it (e.g. seismometers) are not yet usable outside earth.

Re:Mercury found to be tectonically active by mturmon on Tuesday September 27, 2016 @04:04PM (#12592645)
Not critiquing the theory. Just appreciating the fact that some fairly basic physical premises allow you to deduce nontrivial facts.