No, you don't.
However, the Upvote/Downvote alt tips indicate that the level of research you put into a question should guide voting.
I've never heard this theory before, and, without any supporting claims to provide a reference, it does seem completely unfounded and out of the blue.
Peer reviewed literary analysis seems like overkill as a requirement for an upvote, and it certainly isn't a requirement for asking, but some form of reference indicating where you came across this theory, preferably with some sort of justification (even if purely speculative in nature), would go a long way towards making your question better.
You mention in your first sentence that you've heard and read this from more than one source. That's a cue right there that the question would benefit from links to one or more of those sources.
Skeptics.se has a policy that any question requires the claim to be "notable" in order for a question to be on-topic. While this isn't a categorical rule here, it makes sense for these types of questions. Proving a question is based off of a notable claim involves providing references to those claims. Linking to the claims isn't an answer. It's providing an appropriate framework for people to work with to research answers.