Estimate the age of a bottled wine that has a tritium, 3H, content 60% that of freshly bottled wine.Tritium decays by beta decay and has a half-life of 12.3 yr. 
Definitions:
Motion
The action or process of moving or being moved.
Depth
The perceived distance from the observer to an object, enabling three-dimensional perception.
Top-down Processing
An approach to perception where prior knowledge, expectations, or experience drives the interpretation of sensory information.
Bottom-up Processing
A type of information processing that begins with sensory input and builds up to the formation of perception.
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