Scientists are human beings, too. And human beings are often wrong. The problem comes when a character that is mentioned to be a respected, intelligent individual (or sometimes an Absentminded Professor) is called on to state or decides to make a comment on how unlikely it is that an impending and usually bad event will occur. They usually dismiss any possibility of disaster by stating extremely low odds that it will happen, and laugh off holders of an opposing viewpoint as "crazy" or "minsinformed" even if they may in fact be a respected colleague and not just an eccentric, insane or paranoid person who also happens to be right. Point is, nobody can sway him once he's publicly declared that there is, without a doubt, no life on Mars. If they do notice anything wrong, they will likely dismiss it as Within Parameters.
Because the character is held in high regard, everyone listens to them and stops panicking, just in time for the disaster to happen anyway. The character who initially stated these odds often gets involved in the thick of it, quickly changing their mind. This individual may or may not survive. As for their earlier statement, it becomes Hilarious in Hindsight, and they may or may not be called out for it.
If they die in the ensuing cataclysm, it may be as the result of a Death by Irony or Too Dumb to Live. In this role they often function as a Red Shirt or a demonstration that Anyone Can Die. If they survive, they sometimes play the role of the Idiot Hero or Ditzy Genius, or rarely The Professor. The character is usually depicted as naive at worst, and is usually genuinely intelligent but out of his or her league. A Stupid Scientist is almost never outright evil.
The Stupid Scientist can be seen as related to Tempting Fate and they usually demonstrate some form of Genre Blindness. They can also be contrasted with The Cassandra, in that both herald the event, but the difference is that the Stupid Scientist denies the disaster and is widely believed while the Cassandra says that it will happen and is completely ignored. The opposite trope is an Ignored Expert, a scientist who tries to warn everyone of danger but is disbelieved. More sensible or recurring Stupid Scientists can be promoted to Agent Scully.
An Einstein Sue will often be faced with one of these, so they can show them up.
- The Doctor from The Stupiders, who not only didn't notice the extreme side effects of his work on the population of Earth, but suggested he should "fix" any so-called issues by creating more of what caused the problem to begin with!
- In the Disaster Movie Supervolcano, the main character, a geologist, completely denies the possibility of a disastrous supervolcanic eruption in Yellowstone Park. The supervolcano there erupts in a matter of weeks.
- Jurassic Park, where there are repeated claims from park higher-ups that the dinosaurs will not escape and devour everyone. Guess what happens.
Nedry: Don't get cheap on me, Dodgson. That was Hammond's mistake.
- On paper, it was supposed to be perfect; Hammond spared no expense, after all. Except for one:
- Which is why it is stupid, anyway. We are talking about a super high-profile project, that no one has ever attempted before, comprising a park of dangerous animals for which the world knows next to nothing, and there is only ONE person responsible for the security system? This is one lousy security system and management of a project. The investors must be equally stupid to even allow this. It was a disaster waiting to happen rather than unpredictability, as described by Ian Malcolm.
- The story tries to chalk it off with Hammond's obsession with automation, though "spared no expense" appears to be a big, fat lie, in any case. The book goes even further to the incredibly stupid mistakes made in the name of saving money or protecting the dinosaurs at the expense of human safety due to their monetary value. The Accidental Aesop ends up being "capitalism ruins science", not "life finds a way".
- In the Mystery Science Theater 3000 episode that riffed Crash of the Moons, the scientist forgets about the "atmosphere chain" linking the "Gypsy Moons" Poseta and Nagato. The space station they're waiting on will pass through the atmosphere chain, but isn't built to withstand the pressure.
- The scientist in Mars Attacks! stated that since the martians are advanced technologically then they should be peaceful. He kept this up until they kidnapped him, cut off his head, and kept it alive for the lulz. They also kidnapped his vacuous girlfriend and her pet Chihuahua, and switched their heads for the same reason.
- In The Birds, the main characters meet an ornithologist who is in complete denial over the title creatures flocking together to attack humans.
- In When Worlds Collide, several astronomers insist that Dr. Hendron's end of the world predictions are unfounded. While it's later mentioned that they now believe him, they still think his escape plan is impossible.
- The quoted example is from The War of the Worlds by H. G. Wells. Ogilvy, a "well-known astronomer", says that to the narrator at the beginning of the book, right when Martian cylinders are heading to Earth. Nice. To be fair, however, Ogilvy is trying to be rational, and at that point in the story he may be more accurately described personality-wise as an Agent Scully.
- The irony is also somewhat undercut by the beings that invade not being very manlike. "Not very manlike" is not the same thing as being non-existent, unintelligent or friendly...
- In H.P. Lovecraft's Cosmic Horror Story "The Whisperer in Darkness", the main character denies the existence of alien life. Naturally he finds out that aliens do, in fact, exist, especially when they disembody and replace one of his friends. Or not
- He also walks straight into the most obvious trap ever devised, even giving a lengthy monologue over how it can't possibly be a dangerous situation. Fortunately the aliens are just as stupid, and do nothing besides drug his coffee which he doesn't drink, giving him a chance to realize what an idiot he was and run away.
- The British secondary school textbook "Physics for You" features regular illustrations of Professer Messer and his misadventures.
- In Star Trek: Enterprise, T'Pol, and for that matter, the entire Vulcan Science Directorate. The official declaration by the Vulcans is that time travel is impossible. Even after a mission which involved time travel in Season 2, T'Pol still says that she doesn't believe in it. She does get better and finally comes to understand that time travel is real. And in fairness, Vulcans of this time have strayed from Surak's teachings and are living under a military dictatorship.
- Warhammer 40,000: the overwhelming majority of the Adeptus Mechanicus tends to show this kind of behavior, notably in regards to the Necrons. They will happily position major facilities over tomb-worlds and attempt to wake up sleeping Necrons which they see as agents of the Machine God, without ever thinking of what happens when a sentient lifeform is detected by the Necrons...
- The Dorkly article, “These Eight Characters are Definitely Going to Die”, includes in the list, "The Scientist".
How They’re Going to Die: Doing that thing where they treat the monster like it’s cute but then it rips their face off.
- UK weatherman Michael Fish became infamous in 1987 by reporting that "Earlier on today, apparently, a woman rang the BBC and said she heard there was a hurricane on the way... well, if you're watching, don't worry, there isn't!" a few hours before the appearance of the worst storm in the area since 1703. (Technically he was right, in that it didn't meet the exact definition of a hurricane, but this was cold comfort to anyone in its path.)
- More generally, the Meteorological Office initially underestimated the impact of the storm because they had only a few scattered weather reports from ships in its path,note who were mostly on the outer edges of the storm... because everyone not on the outer edges of the storm had taken one look at their barometers and gotten out of there while the going was good. Nobody realised what this meant until a land-based weather station reported in with readings from near the centre of the storm, by which time it was too late.