Technically, anything that ages is a time machine. Anything that travels forward in time is a time machine. I'm a time machine.
travelling into the past, if it were possible, would not be limited, i don't understand how it could be. then, again, i have no idea how it could ever work.
I don't think that a time machine is a good idea....stuff happens for a reason whether we see it or not & if a time machine came into existance then things wouldn't be normal anymore dead would probably be living and stuff like that..Also imagine if you were to go back in time -i mean 16 centuary kind of back in time....we would probably never fit in & look normal.....Imagine if we bumped into Vikings & royal people...that would be wierd...lmfao
As far as I can see everything does not happen for a reason. I mean, it happens for a reason insofar as something caused it, but simple cause and effect is vastly different from any idea of a "higher purpose".
EDIT: I just noticed you weren't arguing against the idea of a 'higher purpose' just for the hell of it...sorry...didn't mean to 'attack' you. I'm not editting my post, because I still believe fate is relevant to this stuff but just so you know I wasn't bashing you just for not believing in a higher purpose...Man...I need to fucking lie down...I'm gonna break something if I don't... I doubt you're going to change your mind...I guess you're just the kind of person that needs a logical explanation for everything. But I personally agree. Some things may just be for a certain reason. I don't want to drown myself in pitty here...but I'm going through hell...my mom's suicidal, so am I. My family makes me feel as though I'm a demon and my girlfriend is really fucking with my mind. It makes me ask "Why is this happening? I haven't done anything wrong." It may sound harsh, but I refuse to believe it's a coincidence that everything's coming together like this. IMO I'm going through hell to build my character. I know, you may say it all IS coincidential and my character being or not being built is basically just a side-affect. But hey...let's let opinion be opinion. Oh and...I wouldn't change anything about my past...I'd hate to mess with what has happened and eventually fuck with what's going on now...even if I don't really enjoy 'now' that much.
let's just concentrate on traveling outside of the solar system...time travel's about as unrealistic as 2 girls & 1 cup