My nephew is a meterologist who works for NOAA and I always tease him about the qualifiers his profession uses "partly sunny" 50% chance "possible".
However when you think about it don't we all hedge. Often you will hear the expression "within a medical certainty"meaning as close a call as we can make.
"My guesstimate " "there is a high probablity" and the ubiquitous "maybe"
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