Interviews are two way things. Perhaps the interviewee isn't so keen having had more contact in person, or doesn't like the suggestion of dropping their idea a

Interviews are two way things. Perhaps the interviewee isn't so keen having had more contact in person, or doesn't like the suggestion of dropping their idea and going with an alternative. Perhaps they just think the gasps of admiration and amazement from the interviewers means it's a can't fail idea that they're already executing well. Saying it's an IQ test is wrong IMHO. But it may be a good negotiating stance.