Remember at the end of The Wizard of Oz when Dorothy and her friends finally meet the great and powerful Wizard in the Emerald City, expecting him to grant their wishes? Then Toto pulls back the curtain, revealing an ordinary man operating machinery and speaking into a microphone. He’s just a regular guy, with no magic, no real power.
Now, imagine watching that scene and still believing the ordinary man is actually a wizard. That pretty much sums up this thread.
That said, there's no harm in letting people believe what they want. If they still think Brad Stevens is going to be the next coach at IU, so be it. Sure, most logical people see it as pure fantasy, but hey, people enjoy fantasies; they give them hope and joy. So why bother trying to convince them otherwise?
As much as you think they should let go of their false hope and fantasy, you also need to let go of your desire to make them accept reality.