What it does well
Sees through pretence instantly and commits completely once convinced.
Water · Fixed · ruled by Pluto (traditionally Mars)
☿ Mercury in Scorpio
Mercury in Scorpio means the mercury stood in Scorpio at the moment you were born. Mercury meets scorpio: thinking and speech — how you process and explain. It moves through a sign in about 30.3 days, which is short enough for the placement to be personal.
How many people share this
Mercury spends 30.3 days in a sign
30.3 days
in each of the twelve signs, so a full circuit takes
1 years.
8.33%
of birth dates fall under any one sign for this
placement — one twelfth, by construction.
Personal
Changes fast enough to differ between siblings.
Fast enough that two people born the same week can differ here, which is what makes it worth reading at all. Compare every planet’s speed →
Mercury governs thinking and speech — how you process and explain. In Scorpio, that function takes on intensity, privacy and refusal to accept surfaces — a Fixed Water expression ruled by Pluto (traditionally Mars).
Where it strains
Tests people rather than asking, and remembers slights for a very long time.
Reading a placement properly
Mercury in Scorpio describes a function in a style. It says nothing yet about where that plays out — for that you need the house, and the house needs a birth time. A placement read without its house is half a sentence.