No one else can do what we’re doing.” No one and nothing is irreplaceable. You will have competition and you have to assume that they will be good.
“Hurry up because other investors are about to do our deal.” If they’re about to do a deal, why do you have to talk to these people?
“Our product will go viral.” Everything says their product will go viral. Almost none do. The odds are heavily against you—even if your mother likes your product or service.