It’s no different from the whole search for Bigfoot, Sasquatch, Yeti, that whole thing. Well, actually it is. In the case of Bigfoot, Sasquatch and Yeti; you

It’s no different from the whole search for Bigfoot, Sasquatch, Yeti, that whole thing. Well, actually it is. In the case of Bigfoot, Sasquatch and Yeti; you don't have multiple, simultaneous, highly trained observers with both visuals and instrumentation reporting something that shouldn't exist. It's not physical evidence but it isn't exactly hearsay either.