Amental shortcut that us to streamline our thinking and make sense of our world is called a _

Heuristic          

Explanation:

Heuristic: In psychology, the term heuristic is defined as a mental shortcut that leads an individual to make judgments and solve problems efficiently and rapidly. Heuristic is responsible for creating ease of the cognitive load that a person has while making a specific decision.

Example: Rule of thumb, profiling, a guesstimate, an intuitive judgment, etc.

Types:

1. Representativeness heuristics.

2. Availability heuristics.

3. Anchoring and adjustment heuristics.

In the question above, the given statement states the importance of heuristic.

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska