I've been reading post on this site for a while, but only just signed up. One particular topic that caught my attention is all the discussion on spells to travel through time.
They all seem to follow a similar pattern: someone desperately wants to go back in time to fix something, people respond explaining that its impossible due to physical laws/messing up the future through a domino effect/universe collapsing on itself. However most the posts seem to assume that a persons whole physical being would go back. I was just wondering why it's not possible that just our conscious mind (or soul?) could go back to our past body, and stay there? Because we technically wouldn't be destroying our past self, since we've already lived through what we would have... if that makes sense. The only restriction on this type of travel would be that you're limited to only the period of time that you've existed in.
As for the whole stepping on a bug and causing catastrophe, I can't really comprehend why this would be an issue. If someone was going to go back, wouldn't the whole point be to change what happened? Sorry, but I really don't see how small things could cause major problems, all the scenarios posted on this seem unrealistic.
Can anyone explain why this method would be impossible? Or (theoretically) possible? Any thoughts? Arguments? Nasty comments on my ignorance?