Someone who considers given facts and comes up with a possible explanation is called a theorist.

Theorists observe various phenomena and use reasoning to come up with practical ideas that should be proven.
The most famous theorist was Albert Einstein who gave the theory of relativity.
by Albertina March 19, 2015
(noun) - a person who accepts the political narrative of the day unquestionably; consumes mainstream media like it was 1980; and is prone to submissiveness, outbursts of irrational fear, and public shaming of free-thinkers.
Dan and Scott are complicity theorists that believe State sanctioned censorship of free speech and protest are for the utilitarian greater good.

My mother is an avid complicity theorist who believes everything reported on main stream media and in government press conferences, without question.

Richard and Perle were operatives who used the Deep State apparatus to subliminally and insidiously control the minds of the unassuming general population through main stream media disinformation; complicity theorists soon became the societal norm.

Antonym: Conspiracy Theorist

Origin of Complicity Theorist: First recorded 2020 (Melbourne, Victoria - Australia)
by UtterSpace September 9, 2020
A person who believes that he holds the "absolute truth" and all those around who disagree with him are either naive , oblivious to the "truth" or just bought off by the clandestine organizations who pull the "strings of humanity" and manipulate events in order to achieve word domination. Such beliefs along with the feeling of persecutions could be linked to paranoia and various forms of delusion. Critical thinking should not be confused with consiracy theorism since the supreme majority of the conspiracists believe many things that are pure fiction and are more than willing to eat up everything that fits their story, even when that's debunked.
- A typical conspiracy theorist is characterized by belief in chemtrails, New World Order domination, Illuminati, zionists, freemasons and other "secret" organizations, denial of the 9/11 attacks, moonlanding, climate change and many a more.
by CorruptedSoul February 1, 2016
Conspiracy Theorists are large groups of underachievers who talk about unrealistic huge world-wide conspiracies, that apparently no one is aware of, except some angry kids and man-children in front of their keyboards.
Essentially, it's a way for them to feel smarter than the establishment and thus it alleviates their feelings of inferiority.
Conspiracy Theorists: "Dude you realize even Tila Tequila exposed the flat earth conspiracy theory?"

Sane Person: "She also thinks she is a clone, right?"

Conspiracy Theorists: "Holy Shit! Even more Illuminati lies exposed."

Sane Person:*Sigh*
by whitecismale (very privileged) February 3, 2016
Deluded person who falls for every satire article and hoax video on the internet and re-posts (usually without even reading or viewing the content themselves) it on Facebook in the belief that they are saving the world by doing so.
by Tee4 March 1, 2015
A person with an inconsistent set of beliefs containing a kernel of truth that attempt to explain social order by means of secret and diabolical plans by the “power elite” on a massive global and historical scale. Conspiracy theories are often propagated by individuals who have been rejected by their own intimate social circles or failed to enter their circles of choice. (Family, popularity, jobs etc.) This world view provides a dual escape. First, it explains to conspiracy theorist why they were never able to meet their full potential, albeit in an unhealthy and productive manner (i.e. the system is keeping me down and if I don’t become a recluse they’ll get me!)Secondly, it fills a void to be “in the know” and a part of group that provides a sense of intellectual superiority over their fellow man. Hence, the Achilles heel to these self-proclaimed “scholars” and google “researchers” is to question their education in any way. Unfortunately, this often puts them in a death spiral of ignorance because the only knowledge they will consider to be legitimate are those “sources” that confirm their own destructive bias; further expelling them into the darkness of their own paranoid imaginations.
Conspiracy Theorist: Hey man isn’t the FED evil
Normal guy or girl: Well, I do think the measures they are taking to stimulate the economy through open market operations are unprecedented. I just hope it doesn't have any unintended consequences like the kind of asset inflation we saw in the housing market after they lowered interest rates to pull us out of the dot com bubble.

Conspiracy Theorist: Debt slavery bro, did you know they are thinking of bugging us to make sure we become materialist drones in order to make the Rothschild’s even richer! Why do you think Obama had a closed door meeting with the FED chair? Think about it dude, don’t be a sheep.
Normal guy or girl: Yeah..maybe (walks away)
by Hello World October 6, 2014
1) Someone with a very open mind... it just happens that they are too open for their own good.

2) A swell way to become an attention whore.

3) A perfect way to waste away years of your life to find no reliable evidence what-so-ever.
Example: A classic 9/11 conspiracy-

Fold a $20 bill in half, then fold one half up perpendicular to the othe half, do the same thing with the other half, *BING*
You found the Pentagon burning down!
Now flip it, you see the twin towers ablazing (which is disturbingly similar though...)
Since the $20 bill's design was concieved in 1928 (over 4 decades when the towers were built), that's nothing more but a coincidence.

>PS, Conspiracy Theorist, haha.