After the debut of inception DreamViews has been inundated with threads and posts concerning things like; dreams within dreams, totems, projections etc. In all my time on pre-inception DV I never saw a thread containing these terms. So why is this still such a popular trend? And is there any truth to the movie?

First off everyone needs to understand two things.

1) Inception is a great movie in my opinion.

2) It is a work of fiction.

There are certain elements in this work of fiction that are directly based on lucid dreaming fact. I'll cover the basic elements of inception and tell you what's true and what isn't.

Dreams Within Dreams:

Here is the big one, dreams within dreams. Are they possible? Well.. yes and no.

No technically they are not actually possible. You can't go "deeper" in a dream. That's right you can stop fretting about limbo.

"You're wrong zebrah I have had dreams within dreams." No actually you haven't. You have dreamt that you had a dream within a dream ,if that makes sense.

You are just changing the dream scene. There was no talk of layered dreams that I ever saw before inception. It is just a trick your mind plays, sorry

Projections:

From the inception wiki, "The images of people or objects in a dream that are "projected" by the sleepers' subconscious minds. While any sleeper can project these images, part of the subject's role in a shared dream is to populate a dream space with projections."

So are projections real? Yes they are essentially dream characters with a different name to sound more exciting.

What is false about projections? They will not attack anyone if the dream is changed drastically. That was just something added to make the movie more interesting.

Totems:

Totems are tools used by the dreamer to see who's dream they are in. Are they real? No. Even if you were in someone else's dream you a totem would feel how you expect it to feel.

What are they based on? Reality checks of course. Totems are a way of becoming lucid in a shared dream and reality checks are a way of becoming lucid in your dreams. See the connection?

Limbo:

Ok here we go limbo. Is limbo real? No. Absolutely not. Limbo is 100% fictional thus there is no such place.

Is it possible to feel like you are in a dream for years? Yeah, but you aren't trapped in some deep down layer that breaks your spirit and makes you an old man in a young man's body.

Shared Dream Machines:

Are shared dream machines real? Nope, at least not yet.

What about shared dreams? This is highly debated but some people do believe it is possible. Most likely this was something that Nolan used to make the shared dreaming interesting and less "new age".

Inception and Extraction:

The possibility of these would be highly dependent on the reality of shared dreaming. Yes in theory both could be possible. Although maybe differently then how they were portrayed in the film.

Thanks for reading this I hope I clarified some things for any people that have questions about inception.