"Wait woah, How do you know this?" I hear you say.
Well, consider this: to a future earth with time-travel capability, past earth (our present) is just a poor country with an outdated military and very rich natural reserves that is, by any reasonable standards, actively attacking future earth; species extinct, CO2 emissions, polluting the oceans and poisoning all the fish, etc etc.
Despite this we have not yet been invaded. This leads me to believe that future earth is unable to invade past earth (because it does not have access to time travel). Furthermore, since it would suffice for time travel to be invented at any time, in however a distant future, for such an invasion to have already taken place, we must conclude that mankind will never invent time travel.
I fully accept I can be a bit of an annoying know-it-all, but rest assured my lack of personality and repressed demeanor more than make up for it. Not to mention I'm still a student and poor!
If this comes off as forced, tacky self-deprecation and a bit conceited just remember, I'm actually very interesting and charming in person.
About my pictures, I generally don't tend to take pictures of myself when I go to places, I'd be too embarrassed that a passer-by might see and think "what a self-absorbed narcissist" so I haven't taken as many pictures as I should have. I make do with other people's facebook-pictures instead and supplement with bathroom selfies. It works okay.