Time travel/clone challenge!!!

Hi guys,

So the other day i was thinking about how we can talk to our subconscious selves in a lucid dream. I have done this on several occasions and its been awesome. So i thought why not take it a step further and see what its like to actually talk to ourselves rather than our subconscious (higher selves). As in time travel back a few minutes to where you were standing so you can have a conversation with yourself or somehow clone yourself. Imagine having a conversation literally with yourself, and do you think it is possible we could be controlling the conversation on two fronts as in we are controlling the past and present versions of ourselves... i don't know i mean weird things happen in dreams.
So i have never really attempted time travel or thought about cloning myself but if anyone is open to the challenge i would love to hear their success or failure :p
And if anyone has any other ways they think this is possible i would love to hear how.

thx ~Lapis.