Speculation. Conjecture, ipso facto guesstimation, per se. Grasp at straws? Predicting wild goose chase blowing sunshine! Postulate, indeed. Suppose proposal prevarication, poppycock bologna balderdash.
spec�u�la�tion /ˌspɛkyəˈleɪʃən/ Show Spelled[spek-yuh-ley-shuhn]
noun
1. the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
2. a single instance or process of consideration.
3. a conclusion or opinion reached by such contemplation: These speculations are impossible to verify.
4. conjectural consideration of a matter; conjecture or surmise: a report based on speculation rather than facts.
[/bored, but not bored enough to make **** up for the sake of making **** up]