“Thin-slicing “ means the ability of our unconscious to find patterns in situations and behavior based on very narrow slices of experience.
Thin slicing simply put is rapid cohesion by the unconscious. A gut feeling. 
What is thin slicing  really is not having to wade through  large data to come up with a certain cognitive behavior or a gut-feel assessment.  When there is a deep morass to think through, some people take a hyperbolic decision .  Zzzzwinkk like the Ohio Tower!
Between the heart and the head, it’s a lightning hurrah decision. A decision coming from the deep oceanic Consciousness to the mind, a wave in the Ocean. 
It is possible to intuit at the seat of the vagus nerve and then predict future or drive a car blind folded or paint.
It is the same way grandma knew measures right from the faucet to the pan or how granpa used his green thumb.
These then are impressions of the world around me, from data dredging to thin slicing.
The Great Indoors is where the Amazon Firestick TV is my window to the world.
The Outdoors is where the butterflies emerge as  Chrysalis and where birds go to die. It does not exist more than the TV because of the  current pandemic!
My introversion forces me to thin slice and both gut feeling and think.
I thunk you do it too. Because reason is just a faculty of man and universe.