Mercury in Gemini

Gemini is mutable air and Mercury rules it, so this is Mercury in its own sign. The mind is fast and associative: these people collect facts, follow tangents and can hold two sides of an argument without strain. They talk easily, write easily and learn by explaining things to other people. The weakness is depth and follow-through, since the next interesting subject arrives before the last one is finished, and a talent for arguing anything can drift into saying whatever the room wants to hear.