For example, the idea that China engineered the virus in a lab and deliberately spread it around the world. Or, even more ridiculous, the notion that it's a fake story spread by Democrats to embarrass Trump.
And yet we see these sort of notions being articulated and promoted by those who either want to create mischief by spreading disinformation, or feel that they are credible and want their peers to be aware of "the truth".
Confirmation bias in action.
B