Find a wall to drill a hole in.
Thick walls / Thin walls
Find the thinnest point.
There is a pool of water.
If even a small hole is penetrated, water begins to flow through it and the hole gets bigger.
Pattern where the hole is penetrated but no water comes out.
Not being able to determine if energy is being stored in the first place is a streak.
It is sterile to dig even harder and thicker holes where water does not come out.
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