Every conspiracy theory has some element of truth to it, like in the Pizzagate conspiracy theory. Yes, there is a real pizza business at the location specified in the conspiracy theory. But no, there is no basement to this building. But facts don’t get in the way of people who believe in conspiracy theories, promoted by QANON. All conspiracies have some amount of fact in them, but then go on to build on the fact some fantasy elements which cannot be proven.
A person can separate conspiracy theory from fact by using critical thinking skills, questioning and scientific analysis. Conspiracy theories often use divisive fear/hate based assumptions, which dehumanize others and lead to violence, genocide or war.
via What Is QAnon? QAnon Is “Offshoot” Of The Widely Discredited And Debunked Pizzagate Conspiracy Theory Promoters – Trump Amplified QAnon, Brought Q Leaders To WH – The FBI Calls QAnon A Domestic Terror Threat, Via Racially Motivated, Violent, Abortion Extremism | A Green Road Journal