Subsequent philosophers have further noted that there is an apparent absurdity in asserting a first-person "future-tense" sentence such as "It will be raining, and I will believe that it is not raining." However, when it does not specify an exact time for when the belief is mistaken, the proposition will tend to be true at some point in the future; its negation would imply that "Every time I believe it's not raining, it will not be raining", which is unlikely since human beliefs are often mistaken.